Walt's Tree Service has done a good job for me. They did lovely and inexpensive work cutting oak branches looming over my home (with no damage to the house!), removing a dead three-story redwood and grinding the stump, taking down a dead tree leaning against my shed with no further damage to that shed -- and cutting/stacking the resulting firewood (though they didn't split the large discs, just chainsawed it all up into appropriate lengths). They will chip up what they cut if you prefer.

Call Anner at (240) 876-9983. His English isn't the best, but I speak no Spanish and we made ourselves understood. Or call his brother Walt at (240)674-3638, and they'd be delighted to come give you an estimate. The actual office number is 301 933-0752 but they don't speak much English at all.
Lynn

Pogo Tree Experts did a nice job this spring on removing a couple of decaying Kwanzan cherries (including stump grinding) and some chinese fir trunks that Pepco cut off halfway down, for a good price. The workers were very professional and pleasant. They left me a nice mountain of chips too (by my request). Their phone no. is 301-774-2968.

I also got an estimate from Springs Tree Service in Glenn Dale. For this job the price was higher than Pogo's but Mr. Springs really knows his stuff and I would definitely ask him for an estimate on any work that needed more expertise than destruction. I don't have his number here, but Google lists it as 301-262-6257