---
title: "Diadem Building & Design — Kitchen & Bath Remodelers | Houzz"
canonical_html_url: https://www.houzz.com/professionals/kitchen-and-bath-remodelers/diadem-building-and-design-pfvwus-pf~723023606
markdown_url: https://www.houzz.com/md/professionals/pf~723023606.md
entity_type: LocalBusiness
business_name: "Diadem Building & Design"
category: ["Kitchen & Bath Remodelers"]
image: https://st.hzcdn.com/fimgs/ce43a3f1078d2b79_9499-w400-h400-b0-p0--.jpg
address: "Aliso Viejo, California, United States"
latitude: 33.5701
longitude: -117.7086
phone: "(949) 297-6771"
website: http://diadembd.com
rating: 5
review_count: 10
best_of_houzz_awards: 2
followers: 18
last_updated: 2026-09-16
---

# Diadem Building & Design

Original Houzz profile: [Diadem Building & Design](https://www.houzz.com/professionals/kitchen-and-bath-remodelers/diadem-building-and-design-pfvwus-pf~723023606)

## Professional summary

- **Primary category:** Kitchen & Bath Remodelers
- **Location:** Aliso Viejo, CA
- **Serves:** Irvine, Mission Viejo, Newport Beach, Lake Forest, Laguna Niguel, San Clemente, Aliso Viejo, Rancho Santa Margarita, San Juan Capistrano, Dana Point, Laguna Hills, Ladera Ranch, Laguna Beach, Laguna Woods, Coto De Caza, Corona del Mar, Foothill Ranch, Trabuco Canyon, Capistrano Beach, East Irvine, Newport Coast
- **Houzz rating:** 5.0 out of 5 (10 reviews)
- **Best of Houzz:** 2 awards (2018–2020), for Service.

## About

### Houzz Badges

- Star Houzzer
- Recommended on Houzz
- 100 Ideabook Saves

Diadem Building & Design have been leaders in the renovation and design field for over 18+ years.  We offer full service remodeling from start to finish.  Engaging a designer for a renovation to create a professionally designed room is critical to the process.  Understanding the demands that clients encounter, the technicalities involving material selection and their installation, as well as managing the entire project and end results is paramount to project success.  This is our foundation to long term success for all.  

We have a strong passion for design and creating entire spaces. Our belief is that anyone can put cabinets and flooring in and call it a kitchen or bath remodel, but that doesn't mean everyone knows how to do it with proper function and taste.  We make it our duty to create the space and bring the atmosphere to life that reflects your lifestyle, wants and needs.   Its all in the details and that is what we are all about.  Creating timeless and rewarding spaces.  We would be honored to dedicate our next project to you. Feel free to give us a call and we promise, you will be satisfied.

### Services Provided

- Bathroom Remodeling
- Kitchen Remodeling
- Home Remodeling
- Home Additions
- Custom Cabinets
- Basement Remodeling
- Outdoor Kitchen Construction
- Flooring Installation
- Outdoor Kitchen Design
- Project Management
- 3D Rendering
- Universal Design
- Floor Plans
- Lighting Installation
- Bathroom Design
- Kitchen Design
- Window Installation
- Deck Building
- Lighting Design
- Demolition
- Laundry Room Design
- Site Preparation
- Space Planning

### Areas Served

- Irvine
- Mission Viejo
- Newport Beach
- Lake Forest
- Laguna Niguel
- San Clemente
- Aliso Viejo
- Rancho Santa Margarita
- San Juan Capistrano
- Dana Point
- Laguna Hills
- Ladera Ranch
- Laguna Beach
- Laguna Woods
- Coto De Caza
- Corona del Mar
- Foothill Ranch
- Trabuco Canyon
- Capistrano Beach
- East Irvine
- Newport Coast

### Typical Job Cost

$35,000 - 180,000

## Business Details

| Field | Value |
| --- | --- |
| Business Name | Diadem Building & Design |
| Address | Aliso Viejo, California, United States |
| Phone | (949) 297-6771 |
| Website | http://diadembd.com |
| License Number | \#1037252 |
| Followers on Houzz | 18 |

**Social profiles:**
- Blog — diadembd.com

## Contact

- **Houzz profile:** [Diadem Building & Design](https://www.houzz.com/professionals/kitchen-and-bath-remodelers/diadem-building-and-design-pfvwus-pf~723023606)
- **Website:** http://diadembd.com
- **Phone:** (949) 297-6771

## Credentials

**Certifications & Awards**
- General Contractor

- **Best of Houzz:** 2 awards (2018–2020), for Service.

**Affiliations**
- [National Kitchen & Bath Association](https://www.houzz.com/professionals/schools-and-organizations/national-kitchen-and-bath-association-pfvwus-pf~1351084655)
- [NKBA Southern California](https://www.houzz.com/professionals/schools-and-organizations/nkba-southern-california-pfvwus-pf~219204573)

## Reviews

**Overall rating: 5.0 out of 5 — 10 reviews**

### All 10 reviews

**★★★★★ — Judi Goshert, Sept. 2019**

> I was given Karol’s name through my realtor. I have enjoyed working with Karol for the last number of months. I love the things that she has found for me for my home and the prices have been very fair.  Karol is very easy to work with and has wonderful suggestions.  She has helped to make my home very comfortable and beautiful.

**★★★★★ — Kathryn Mangan, Feb. 2018**

> Karol is the most amazing designer I have worked with. Talented and professional at every level with exceptional attention to detail. I am VERY particular and know what I like but it takes someone special to pull all my "likes" into my vision and Karol has the ability to make it happen.

**★★★★★ — Rita Quinn, Oct. 2017**

> Karol along with her team have been beyond professional.  I would have rated her more stars if given the choice.  She is very  honest and most important listen to what I wanted in our very challenging bath remodel. Her design was spot on!!  If at any given moment I had any concerns/ questions she would be here even on her days off to resolve them.  If you are looking for someone who has the vision and experience Karol will not disappoint.
> Rita Q.

**★★★★★ — A-Plus Contractors, July 2017**

> Karol Gore is an amazing Designer and has vast knowledge of the Construction process which is key to successful projects. Her eye for detail and dedication to each and every project is second to none. I have worked with many Designers and I count Karol as one of my best. She has great ideas and realistic expectations from her associates. She stands behind her work as well as her Contractor Associates. She can work within a Client's budget and gives realistic completion times. Expect great things when working with Karol Gore of Diadem Building & Design.

**★★★★★ — Vintage Accessible Bathroom, July 2017**

> Diadem Building & Design demonstrates a passion for fresh, innovative design. Karole's enthusiasm is contagious, and her integrity is impeccable. I highly recommend her!

**★★★★★ — Wanda Zimmer, March 2017**

> Karol met with me and came up with the perfect tile, quartz and cabinets for my kitchen. We are hiring her to remodel our bathroom also.  Karol,is professional and is always prompt corresponding with us.
>
> We also liked the contractor she chose.  They were respectful of our home and time

**★★★★★ — Linda Oldfield, March 2017**

> Bathroom remodel.   Replace tub- shower with full size ceramic tile shower and European style sliding doors.  Design work and contractor performance were top notch.

**★★★★★ — Gene Scarcello, March 2017**

> Karol is the consummate professional.  I have been building and remodeling for over 40 years working on both residential and commercial properties.  Karol's knowledge of the process from start to finish is excellent.  Her design sense, color suggestions and eye for detail were just what we needed.
> Karol took over an extensive kitchen renovation after the original designer was called away by a family emergency.  She came in and put the project back on track, making the small and significant changes that were necessary.  Most importantly she has the unique ability to work with people with divergent tastes, personalities and design ideas.  She seamlessly guided us through some very difficult choices without having either side lose their cool, this resulted in a superior product that we could not have achieved by ourselves.    I recommend her highly.

**★★★★★ — Jane Weaver, March 2017**

> Karol is highly professional, reliable and knowledgeable about
> all aspects of home design.  She was an absolute dream to work with.
> I only wish that we had met her earlier in the remodel process so that we could have avoided some early mistakes.  She has gone above and
> beyond the call of duty by personally delivering materials to the job
> site.  We could not be happier working with Karol and would definitely recommend her to anyone looking for a design professional that you can trust to respect your opinions and budget.

**★★★★★ — Norma LeBaron, Feb. 2017**

> I was 4 months into a remodeling project when I found myself stuck and overwhelmed with all the decisions that come with design and color choices.  That's when I contacted Diadem Building & Design and Karol Gore literally took the stress away. She helped us redesign the kitchen cabinet layout for more functionality & balance. She helped us pick kitchen countertops, backslash, and flooring to create the atmosphere and style we knew we wanted, but didn't know how to create. She has also helped us pull together the colors & textures for our master bathroom. How I wish we would have contacted her from the very beginning! We will continue to consult with her to bring our vision and dreams for our home to life. Whether you are just starting out (which is ideal) or in the midst of a project, you will not be disappointed by the support, expert advice and service from Karol Gore and Diadem Building & Design!

## Selected projects

- [Laguna Beach Guest Bath](https://www.houzz.com/hznb/projects/laguna-beach-guest-bath-pj-vj~5471484)
  - Location: Not specified
  - Photos: 6
- [Laguna Beach Master Bath](https://www.houzz.com/hznb/projects/laguna-beach-master-bath-pj-vj~5471494)
  - Location: Not specified
  - Photos: 1
- [Springfiled Home](https://www.houzz.com/hznb/projects/springfiled-home-pj-vj~2061042)
  - Location: Not specified
  - Photos: 3
  - Description: Custom treatments, upholstery, entire house color coordination and selections
- [Northville Kitchen](https://www.houzz.com/hznb/projects/northville-kitchen-pj-vj~2061070)
  - Location: Not specified
  - Photos: 7
  - Description: Accentuating 9ft. ceilings with stacked decorative cabinets, stacked moldings and base details.
- [South Lyon Kitchen](https://www.houzz.com/hznb/projects/south-lyon-kitchen-pj-vj~2061097)
  - Location: Not specified
  - Photos: 9
  - Description: Creating the "Super Kitchen" by combining traditional formal dining room and kitchen. Disguising the second floor plumbing & electrical in decorative arch at structural wall.
- [Andover Bath](https://www.houzz.com/hznb/projects/andover-bath-pj-vj~2061053)
  - Location: Not specified
  - Photos: 2
- [Berry Creek Home](https://www.houzz.com/hznb/projects/berry-creek-home-pj-vj~1938772)
  - Location: Not specified
  - Photos: 8
  - Description: Transitional Design with High Detail

[See all 7 projects](https://www.houzz.com/professionals/kitchen-and-bath-remodelers/diadem-building-and-design-pfvwus-pf~723023606)

## Ideabooks

- [Wish List](https://www.houzz.com/ideabooks/51615643/list/wish-list) — 6 ideas
- [Bath Cabinetry & Products](https://www.houzz.com/ideabooks/89439908/list/bath-cabinetry-products) — 10 ideas
- [Inspirations](https://www.houzz.com/ideabooks/70266714/list/inspirations) — 2 ideas

[See all 3 ideabooks](https://www.houzz.com/ideabooks/users/diadembd04)

## Community Q&A

**Q: Ceiling accent trim** *(in Photo Questions)*

Hi Karole, This ceiling trim is great. It's subtly dividing the kitchen and dining room without separating the two with a wall. Love it.

A: It is actually concealing the plumbing in the upper lever bathroom as it was not possible to hide it in the floor joist.

**Q: Backsplash tile** *(in Photo Questions)*

Hello Karole, what brand of tile did you use for the backsplash? Love it.

A: Natural stone / Durango 4x4 and Noce Travertine Mini-Brick

**Q: Great organizer** *(in Photo Questions)*

Hi Karole, love this neatly-organized little niche. What cabinetry brand?

A: Brookhaven Cabinetry - Springfield Raised Panel, Cherry wood species

**Q: Lighting** *(in Photo Questions)*

Hi Karole - what brand of lighting did you specify here? Love the dramatic chandelier.

A: It is an Oil Rubbed Bronze transitional style.

**Q: Flooring** *(in Photo Questions)*

Hello, what is the brand and color of this flooring. What a great contrast to the white cabinetry. Love this.

A: It is a solid 3/4 inch hand scraped, maple, pre-finished, tongue & groove, 6" plank.

**Q: Stone facade on the chimney** *(in Photo Questions)*

Hello Diadem Building & Design, love the stone veneer on the chimney. What is the brand and color?

A: It was a split face travertine

---

*Source: Houzz professional profile. Reflects the profile as of 2026-09-16.*