--- title: "Bret Achtenhagen's Seasonal Services — Landscape Architects & Landscape Designers | Houzz" canonical_html_url: https://www.houzz.com/professionals/landscape-architects-and-landscape-designers/bret-achtenhagen-s-seasonal-services-pfvwus-pf~344093909 markdown_url: https://www.houzz.com/md/professionals/pf~344093909.md entity_type: LocalBusiness business_name: "Bret Achtenhagen's Seasonal Services" category: ["Landscape Architects & Landscape Designers"] image: https://st.hzcdn.com/fimgs/9bc32f1c00f75f05_3495-w400-h400-b1-p10--.jpg address: "W336 S8510 Hwy E, Mukwonago, Wisconsin 53149, United States" latitude: 42.8821 longitude: -88.3451 phone: "(262) 392-3444" website: http://www.seasonalservices.com rating: 5 review_count: 29 years_in_business: 31 best_of_houzz_awards: 16 followers: 120 last_updated: 2026-08-13 --- # Bret Achtenhagen's Seasonal Services > Waukesha County Award Winning Landscape Architects > 8x Best of Houzz! Original Houzz profile: [Bret Achtenhagen's Seasonal Services](https://www.houzz.com/professionals/landscape-architects-and-landscape-designers/bret-achtenhagen-s-seasonal-services-pfvwus-pf~344093909) ## Professional summary - **Primary category:** Landscape Architects & Landscape Designers - **Location:** Mukwonago, WI - **Serves:** Brookfield, New Berlin, Menomonee Falls, Oconomowoc, Pewaukee, Hartland, Waukesha, Lake Geneva, Mukwonago, Delafield, Waterford, Wind Lake, Tichigan, East Troy, Rochester, Wales, Dousman, North Prairie, Eagle, Big Bend, Potter Lake, North Lake, Genesee Depot, Lake Country, Most of Southeastern WI - **Houzz rating:** 5.0 out of 5 (29 reviews) - **Best of Houzz:** 16 awards (2015–2026), for Design, Service. ## About ### Houzz Badges - Houzz Pro Software User - Recommended on Houzz - 25,000 Ideabook Saves - Best of Houzz winner - Family owned - 31 years in business - Verified Hires ### Business highlights - 31 years in business - Best of Houzz winner - Family owned - 1 Verified Hire Established in 1994, Bret Achtenhagen’s Seasonal Services is located in Mukwonago Wisconsin and serves eight counties in Southeastern Wisconsin. Seasonal Services provides the following distinctive, custom landscaping services to residential and commercial clients: Architecture, Construction, Decorative Masonry, Concrete, Wood Features, Horticultural Care, Maintenance, Fertilization & Weed Control, Irrigation and Lighting. At Bret Achtenhagen’s Seasonal Services, we’ll handle all of your landscaping needs season after season, so you can spend your valuable time doing things most important to you. We work together within a team environment of mutual respect, honesty and integrity. As we work and live by our mission statement - Details Matter - our passion drives us to challenge our commitment toward quality, enhancing the level of excellence that we provide to our clients. All you need to do is dream it. We will be certain you achieve it. ### Services Provided - Landscape Design - Garden Design - Hardscaping - Landscape Plans - Patio Design - Pool Landscaping - Custom Fire Pits - Custom Water Features - Artificial Grass Installation - Brick Masonry - Brush Clearing - Concrete Construction - Drip Irrigation Installation - Hedge Trimming - Irrigation Repair - Irrigation System Installation - Landscape Lighting Installation - Landscape Maintenance - Lawn Aeration - Lawn Care - Lawn Mowing - Lawn Seeding - Lawn Treatment & Fertilization - Masonry - Mulching - Outdoor Fireplace Construction - Outdoor Kitchen Construction - Outdoor Lighting Installation - Patio Construction - Paver Installation - Planting - Retaining Wall Construction - Sod Installation - Sprinkler System Installation - Stamped Concrete - Tree Planting ### Areas Served - Brookfield - New Berlin - Menomonee Falls - Oconomowoc - Pewaukee - Hartland - Waukesha - Lake Geneva - Mukwonago - Delafield - Waterford - Wind Lake - Tichigan - East Troy - Rochester - Wales - Dousman - North Prairie - Eagle - Big Bend - Potter Lake - North Lake - Genesee Depot - Lake Country - Most of Southeastern WI ### Typical Job Cost $5,000 - 1 million ## Business Details | Field | Value | | --- | --- | | Business Name | Bret Achtenhagen's Seasonal Services | | Address | W336 S8510 Hwy E, Mukwonago, Wisconsin 53149, United States | | Phone | (262) 392-3444 | | Website | http://www.seasonalservices.com | | Years in business | 31 | | Followers on Houzz | 120 | **Social profiles:** - Facebook — https://www.facebook.com/pages/BRET-ACHTENHAGENS-SEASONAL-SERVICES/258436392430 - X (Twitter) — https://twitter.com/BretAchtenhagen ## Contact - **Houzz profile:** [Bret Achtenhagen's Seasonal Services](https://www.houzz.com/professionals/landscape-architects-and-landscape-designers/bret-achtenhagen-s-seasonal-services-pfvwus-pf~344093909) - **Website:** http://www.seasonalservices.com - **Phone:** (262) 392-3444 ## Credentials **Certifications & Awards** - Member of the Wisconsin Landscape Contractors Assoc., National Assoc. of Landscape Professionals and the Metropolitan Builders Assoc. Winner of 10 WLCA Awards for Landscape Design, Construction & Management and the Metropolitan Milwaukee Assoc. of Commerce's Future 50 Award. - **Best of Houzz:** 16 awards (2015–2026), for Design, Service. **Affiliations** - [American Society of Landscape Architects](https://www.houzz.com/professionals/schools-and-organizations/american-society-of-landscape-architects-pfvwus-pf~2014062207) - [Metropolitan Builders Association](https://www.houzz.com/professionals/schools-and-organizations/metropolitan-builders-association-pfvwus-pf~1259565946) - [Wisconsin Landscape Contractors Association (WLCA)](https://www.houzz.com/professionals/schools-and-organizations/wisconsin-landscape-contractors-association-wlca-pfvwus-pf~1580282804) ## Reviews **Overall rating: 5.0 out of 5 — 29 reviews** *Aspect averages:* - Work Quality: 50.0 - Communication: 50.0 - Value: 50.0 ### Reviews **★★★★★ — Steve, Jan. 2025** > Kyle, Phil and Brady were fantastic in helping to design and craft a project on a challenging site to completely transform it. The crew that did the work had impeccable craftsmanship and it was a pleasure to work with everyone. **★★★★★ — User, March 2024** > We just completed our second project with Seasonal Services. Both involved removal and replacement of fairly large wood beam retaining walls and patio area with decorative stone. Design work, permitting, product selection and on site work was all very professional. It was clear that the company had the experience, equipment and staff to produce the final product that we were very happy with. Thanks to Brady, Matt, Miguel, Dante and the rest of the crew for a job well done. **★★★★★ — HU-54995812, Dec. 2023** > The staff is outstanding and great to work with. I have had both installed project work done and their maintenance has done a beautiful job on maintaining the work. I would recommend them to all of my family and friends! Check them out you will not be disappointed!! 5 - Stars **★★★★★ — Bob Jung, Aug. 2023** > Seasonal Services was terrific with my new home. They did all of the landscaping, the pool deck and landscape lighting. A beautiful outdoors to fit a beautiful home. **★★★★★ — cddietz3, Oct. 2021** > We are extremely pleased with our rock wall project which was completed by Brett Achtenhagen's Seasonal Services. This was the third project they have completed for us and their superior workmanship continues to impress us. We originally had them install a brick paver patio and a different rock wall with outcropping steps. Their work is very detail orientated from start to finish. Roberto and his crew worked tirelessly to complete the project on time. They were very punctual and kept the job moving along. Roberto was superior in supervising the crew and knew exactly what to do to get the job done correctly. Our satisfaction and input were always welcome. Brady Achtenhagen originally came out to look at the job and was always available to answer any questions we may have. We are very pleased with the outcome and would highly recommend this company. They have a 5 star rating from us. **★★★★★ — HU-646016692, Dec. 2020** > .We had a fabulous experience with Bret Achtenhagen's Seasonal Services. They redesigned our backyard to our wishlist and our budget, and we have been enjoying our new backyard ever since. They created a beautiful design that we were able to see digitally at first. Then we scaled it back and were given options for saving money but not sacrificing the overall function. Our design included new concrete/patio, a gas firepit and stone wall, a pergola, outdoor lighting in front and back, perennials, bushes, ornamental grasses, etc. The project was started and completed as they said it would be and we were given a project manager that communicated with us every step of the way. He told us exactly what they would be doing each day and was quick to respond any time I had a question. Once it was finished our sales rep even answered all of my inquiries as to the best lighting/bulbs to buy for the pergola and opinions/advice on the best grills for the money. When we ran into an electrical issue with the hot tub we were having installed, our sales rep was so reassuring "Don't worry. We will take care of it and do what we need to to get it up and running." And they did. When I had two plants this year that looked like they were not coming back, I called in and received great service. They sent someone out to take a look. They pruned them and they recovered but had offered to replace if needed. We receive many compliments on our backyard and we are thrilled with the results! **★★★★★ — Deb C., Nov. 2020** > We chose Seasonal Services for our patio and sidewalks. While meeting with Brady Achtenhagen about our project, he noticed right away there were some unique conditions on our property that would impact our project. Another company we consulted with did not even mention this! We are extremely pleased that we chose Seasonal Services. Gustavo, Hector and their crew did an absolutely fabulous job on our paver patio and sidewalks. One thing we noticed right off the bat was that they treated our property like it was their own. The attention to detail is phenomenal and the quality of their work is top notch. Whenever we would step outside to take a look at the progress, they asked us how we liked everything so far and made sure we were completely satisfied. They are extremely professional and polite. During this project, we decided to replace our driveway with concrete, and were very happy to find out that Seasonal Services also has their own concrete crew. Dave and Brady came out to evaluate this additional project which turned out fantastic. Ken and his crew are extremely knowledgeable about concrete driveways, and also treated the driveway project as if they were installing it at their own homes. Seasonal Services met all our expectations. They made us feel like we were their most important customer. You will not be disappointed with Seasonal Services. **★★★★★ — Ron K, May 2020** > We recently built a custom home and was told that Seasonal Services was a great landscape company. After contacting them they meet with us several times and then presented their proposal. We made it very clear, from the beginning we were looking for landscaping that was "maintenance free". In addition to the need for traditional landscaping, we were in need of a 12 foot high retaining wall, with a patio on top. Brady, Dan, Ken and the rest of the team bent over backwards to make sure every little detail was acceptable to us. From landscaping, retaining wall, patio's and driveway they did a great job. Very seldom do I write a review, however, I can not over state what a great company this is. If you are looking for a trustworthy, customer driven company to do your landscaping and exterior work should not call anyone else. Period! **★★★★★ — Justin G, Aug. 2019** > I highly recommend Bret Achtenhagen's Seasonal Service to anyone. I worked with Sarah Ehrhardt for my new home landscaping and she was very professional and helpful from the very beginning. Great knowledge and recommendations. We also hired Sarah and her team @ Seasonal for our whole subdivision landscaping and maintenance. I will be using Seasonal Services for all my projects going forward. **★★★★★ — Shelly F, July 2019** > We highly recommend Seasonal Services! The process went smoothly from the planning stages to the finished project. Brady Achtenhagen was such a joy to work with! He was dedicated, professional, timely, he listened, and he honored and stayed within our requested budget. He was always available for questions. Most importantly, what an exceptional job by the crew! We were so grateful for their hard work and also for their professional, positive attitudes. They always had a smile and positive greeting each time I saw them. They listened to any feedback we had and they fully lived up to their mission statement of "Details Matter" in every way! It was evident that they take great pride in their work. The crew also worked very hard to keep the job site organized and clean. They cleaned the homesite, as well as the street, each night before leaving! This is a courtesy to not only the customer but also the neighbors living nearby. If you are looking for quality and reliable results, contact Seasonal Services today! **★★★★★ — Tim G, Feb. 2019** > We contacted Seasonal Services to provide a quote on landscaping our new home. I worked with Brady from the start. Everything was clear, concise, straight forward, easy to understand, and a pleasure to work with. The crew came out on time and finished their work timely. They were extra courteous and move two already planted trees for us as I had given the wrong information on location. Just waiting for the winter to pass to see our new grass seed take. I know I'll be working with them again to patch up any bare spots and I have no doubts it'll be a great experience. **★★★★★ — CHET & SUE CUSICK, Feb. 2019** > This company did 4 separate projects for us. Each was done with the greatest of care, on time, in budget and by professional staff. We were exceptionally pleased with the entire process from sales to the work done and follow up. They are friendly people doing good work. Based on our experience we highly recommend Seasonal Services for any landscaping project. ## Selected projects - [Custom Fireplace and Pergola - Pewaukee](https://www.houzz.com/hznb/projects/custom-fireplace-and-pergola-pewaukee-pj-vj~7084383) - Location: Pewaukee, WI - Photos: 9 - [Elm Grove Timber Frame](https://www.houzz.com/hznb/projects/elm-grove-timber-frame-pj-vj~7084376) - Location: Elm Grove, WI - Photos: 20 - [Outdoor Kitchen - Elm Grove](https://www.houzz.com/hznb/projects/outdoor-kitchen-elm-grove-pj-vj~7084379) - Location: Elm Grove, WI - Photos: 8 - [Newbridge Model Home](https://www.houzz.com/hznb/projects/newbridge-model-home-pj-vj~6752310) - Location: Oconomowoc, WI - Photos: 11 - [Waterford Residence](https://www.houzz.com/hznb/projects/waterford-residence-pj-vj~6317810) - Location: East Troy, WI - Photos: 18 - [Beulah Bay](https://www.houzz.com/hznb/projects/beulah-bay-pj-vj~807065) - Location: East Troy, WI - Photos: 15 - Description: Winner of 2015 WLCA Gold Award for Residential Landscape Design and Construction - [Casual Craftsman](https://www.houzz.com/hznb/projects/casual-craftsman-pj-vj~145728) - Location: Pewaukee, WI - Photos: 8 - [Dine, Lounge, Gather](https://www.houzz.com/hznb/projects/dine-lounge-gather-pj-vj~2649921) - Location: Waukesha, WI - Photos: 16 - Description: The existing conditions at this Waukesha backyard were underwhelming, to say the least. The useable space was confined to an enclosed deck which was far too small to accommodate dinner parties or gatherings. The space felt restricted and disjointed from the expansive lawn and wooded property edge. The deck dated the house and offered little in terms of functionality. The homeowners defined their criteria for the project. They requested a space to dine, a space to lounge and a space to gather aro… - [Beauty on the Edge](https://www.houzz.com/hznb/projects/beauty-on-the-edge-pj-vj~2820361) - Location: Menomonee Falls, WI - Photos: 15 - Description: What at first seemed like an impossibility turned into a reality when the owners of this Menomonee Falls residence consulted with a high-end builder who specializes in challenging projects. The landscape architect/contractor, who collaborates with the builder, crafted a design that would satisfy all of the homeowner’s wants and needs while addressing the difficult nature of the site. The client had numerous requests and a budget of approximately $600,000 - $700,000 for the outdoor elements (half… - [Grandma's Garden](https://www.houzz.com/hznb/projects/grandma-s-garden-pj-vj~2827051) - Location: Waukesha, WI - Photos: 27 - [Courtyard Transformation](https://www.houzz.com/hznb/projects/courtyard-transformation-pj-vj~806633) - Location: Oconomowoc, WI - Photos: 17 - Description: Winner of 2015 WLCA Gold Award for Residential Landscape Design and Construction - [Rustic Retreat](https://www.houzz.com/hznb/projects/rustic-retreat-pj-vj~146227) - Location: Racine, WI - Photos: 18 - [Patio Renovation](https://www.houzz.com/hznb/projects/patio-renovation-pj-vj~1353077) - Location: Oconomowoc, WI - Photos: 4 - [Lake Country Estate](https://www.houzz.com/hznb/projects/lake-country-estate-pj-vj~1980086) - Location: Chenequa, WI - Photos: 9 - [Waukesha Residence](https://www.houzz.com/hznb/projects/waukesha-residence-pj-vj~432866) - Location: Menomonee Falls, WI - Photos: 6 - [From Frustration to Fun](https://www.houzz.com/hznb/projects/from-frustration-to-fun-pj-vj~6066867) - Location: Brookfield, WI - Photos: 10 - [Lake Country Project](https://www.houzz.com/hznb/projects/lake-country-project-pj-vj~146246) - Location: Nashotah, WI - Photos: 6 - [Seasonal Services Portfolio](https://www.houzz.com/hznb/projects/seasonal-services-portfolio-pj-vj~146281) - Location: Mukwonago, WI - Photos: 42 - [Lake Country Landscaping](https://www.houzz.com/hznb/projects/lake-country-landscaping-pj-vj~6760804) - Location: Brookfield, WI - Photos: 5 - [Bay View Estate](https://www.houzz.com/hznb/projects/bay-view-estate-pj-vj~7786511) - Location: Oconomowoc, WI - Photos: 23 [See all 22 projects](https://www.houzz.com/professionals/landscape-architects-and-landscape-designers/bret-achtenhagen-s-seasonal-services-pfvwus-pf~344093909) ## Video - [Company video](https://player.vimeo.com/external/840716649.m3u8?s=59f71312355ddf2678c1a9e68bb69f4534e6deec&oauth2_token_id=1384357804) ## Frequently Asked Questions **What types of landscape design projects do you specialize in?** We specialize in a wide array of custom landscape design projects, from full architectural designs to specific features. Our portfolio showcases diverse styles including Cottage, Craftsman, Courtyard, Lake Estate, and Modern Outdoor Living. We also excel in creating unique elements like custom water features, fire pits, patios, and intricate masonry work, ensuring each project is distinctive and tailored to your vision. **Do you offer design-only services or full project coordination?** Yes, we offer both design-only services and comprehensive project coordination. Our 'Proven Process' guides you from initial dream and design through expert crafting (installation) and ongoing nurturing (maintenance). We have dedicated teams for both Landscape Architecture & Design and Landscape Construction, ensuring a seamless transition from concept to completion. **Do you create detailed planting and layout plans?** Absolutely, creating detailed planting and layout plans is a core part of our design process. Our landscape architects and designers meticulously plan every element, from the overall layout to specific plant selections, ensuring functionality, beauty, and long-term health for your outdoor space. We also offer horticultural care and ornamental plant health care. **Do you design outdoor living spaces such as patios and outdoor kitchens?** Yes, designing exceptional outdoor living spaces is one of our specialties. We create custom patios, outdoor kitchens, outdoor fireplaces, and other hardscaping elements that extend your home's living area into the landscape. Our team integrates these features seamlessly to craft inviting and functional spaces for relaxation and entertainment. **Do you design drought-tolerant or sustainable landscapes?** We are committed to creating landscapes that are not only beautiful but also environmentally responsible. Our design approach incorporates sustainable practices, and our team includes landscape architects who blend aesthetics with functionality and sustainability. We strive to design landscapes that thrive while minimizing environmental impact. *FAQ content may be generated based on the Pro's Houzz profile and website.* ## Ideabooks - [ADAMS 2024](https://www.houzz.com/ideabooks/171920762/list/adams-2024) — 27 ideas - [Walls](https://www.houzz.com/ideabooks/106138919/list/walls) — 3 ideas [See all 2 ideabooks](https://www.houzz.com/ideabooks/users/jerome78) ## Community Q&A **Q: Lynn’s garden ideas** *(in Photo Questions)* What is the name of the pink echinacea? A: Hi Lynn. The name of the pink coneflower in the photo is called "Kim's Knee High". Hope this helps! **Q: Beautiful! What type of trees are in front of the windows?** *(in Photo Questions)* A: Those trees are dwarf crabapples on standard. Hope this helps! **Q: Patio circumference** *(in Photo Questions)* What is the width? A: This patio was about 12' wide. It was set away from the house as a garden "destination". **Q: yellow flowers** *(in Photo Questions)* i really love the stunning yellow flowers, what 's that? A: Those are yellow mums. Hope this helps! **Q: can you tell me where the chairs can be purchased?** *(in Photo Questions)* A: Hi there. Unfortunately I do not know where to purchase the chairs....the homeowners bought them after the project was finished. Sorry I can't help! **Q: What are the slab steps?** *(in Photo Questions)* A: Hi pjpintor. The steps are Fond du Lac outcropping steps. Hope this helps! --- *Source: Houzz professional profile. Reflects the profile as of 2026-08-13.*