
Serving Gaithersburg, MD and surrounding areas
Approved
Free estimates
Warranties offered
Small jobs welcome
"Al was very professional and polite. He explain everything to me about my chimney and was very helpful!"


*The Angi rating for Chimney Liner Installation companies in Gaithersburg, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Chimney Liner Installation needs.
*The HomeAdvisor rating for Chimney Liner Installation companies in Gaithersburg, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Chimney Liner Installation needs.
Last update on October 02, 2026

Serving Gaithersburg, MD and surrounding areas
Approved
Free estimates
Warranties offered
Small jobs welcome
"Al was very professional and polite. He explain everything to me about my chimney and was very helpful!"


Serving Gaithersburg, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2020
Free estimates
Emergency services offered
"If I could give Chimney Discounters, LLC six stars, I absolutely would!!!! My experience with this company was outstanding from start to finish. We needed a new chimney liner and a new chimney damper with a top sealing cap (to keep out pests) installed in a chimney that hadn’t been used in over 50 years, and from my very first phone call, I was impressed by their honesty and professionalism. Instead of trying to sell me unnecessary services, they took the time to listen, offer thoughtful guidance, and recommend exactly what was needed—nothing more. That level of integrity immediately earned my trust. Mr. Thomas was incredibly knowledgeable and made me feel completely at ease. It was clear right away that he truly understands chimneys and takes pride in his work. From the initial inspection through the completion of the project, he and his team were consistently punctual, courteous, and professional."





+18

Serving Gaithersburg, MD and surrounding areas
Approved
In business since 1980
Free estimates
Emergency services offered
"The repointing work was generally done well. Old mortar and bricks were removed and new bricks were installed. The craftsmanship was excellent. However, the color of the mortar used differed from that in the rest of the brickwork, so at present it stands out. Sixpenny said to wait a period and then re-evaluate whether any change should be made. I would rate this as an "A" but for the color difference in the mortar that was not expected. The chimney cap work was done well."





+1

Serving Gaithersburg, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Emergency services offered
Warranties offered
"Dustin put new liners in both of my chimneys for a furnace and wood stove. He did a great job at a fair price. Very professional. I call him for my yearly cleaning and highly recommend him as he is very knowledgeable"





+1

Serving Gaithersburg, MD and surrounding areas
Approved
In business since 1979
Free estimates
Emergency services offered
"I have used American Professional Chimney and Masonry on three different occasions and I am very happy with the work and the service. They are my "go to". I had the upper 40% of my chimney rebuilt, I had chimney liners installed, and I recently had a couple of smart solutions done to prevent smoke from going up and out of one flue, and down the one right next to it. I'm confident that this problem has been eliminated in advance of the upcoming fall/winter wood burning season. I will continue to use APCM for maintenance."





+11

Serving Gaithersburg, MD and surrounding areas
Approved
Free estimates
Credit card accepted
Offers commercial services
We proudly specialize in chimney and duct cleaning and repairs, delivering reliable service you can count on. With 3 years in business and a small, dedicated team, we focus on doing the job right the first time, safely, thoroughly, and with respect for your home. \n \nWhether you need routine maintenance or help with a specific issue, we will take the time to explain what we are doing and why, so you feel informed and confident. \n \nContact us today to schedule your service and keep your chimney and ducts clean, efficient, and safe. \n
Serving Gaithersburg, MD and surrounding areas
Approved
In business since 2002
Free estimates
Warranties offered
"Sergio and his team repaired our chimney, including the liner, plus slate replacements on our roof. Very professional, extremely good work for a very reasonable price. All the things you could want with a major home repair."



Serving Gaithersburg, MD and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"Chimney.com did a great job in chimney relining. The work was inspected and approved by WSSC today. Their staff are very courteous, honest, professional, and responsible. Their young technician Dave is efficient, hard working, knowledgeble. I give this company and their staff a five star!"





+5

Serving Gaithersburg, MD and surrounding areas
Approved
In business since 1994
Free estimates
Warranties offered
"MCP explains in layman terms everything going on with your chimney and makes it easy for the homeowner to understand. They take the time to walk you through the process and take a video of the interior of the chimney so you know what they are saying is true. My clients are always comfortable after meeting with MCP."





+8

Serving Gaithersburg, MD and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
"Could have been a lot better. I really wanted to like these guys based on a lot of positive AL reviews. After the initial inspection before having chimney cleaned, I was told the liner (tile) was beyond repair and needed to be replaced. I agreed to a price estimate of $3600. Two weeks later they came to do work and two men spent an entire day, but could not insert the new liner. They said estimator did not tell them scaffolding would be needed. The next day (after being told another crew would arrive around 8AM), they showed up at 11:00 and immediately said they were going to lunch. Afterwards, they told me that the first crew was inexperienced and that they had 20 years experience doing this. After some time they told me it was highly recommended I replace the second flue liner for the furnace. They said since they were already there and had everything set up that it would be an additional $1200. After talking to the office, they decided that it couldn't be done that day, and it would instead cost me an additional $2600. I took a pass. Crew seemed very eager to leave, collect their check, and get back home. Had to move back furniture myself. As I said.....really wanted to give these guys a good review, but this was not a very pleasant experience. **UPDATE** This is a follow up to my review from 1/20/2020. I received a call from the owner (Jim) and was very pleased that he took the time to explain everything to me and was very eager to address all my concerns, including personally coming out to my house and advising me on another issue with my furnace venting that I had not known about. So, ultimately, the work done was fine and very professional and it totally changed my opinion when the owner showed such understanding and support. This is what good customer service ought to be."





+139
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