Roofing contractor
GMP Construction LLC
216 Sollers Point Rd, Dundalk, MD 21222
- Google average
- 5.0
- Ratings counted
- 92
- One and two star
- 0 of 92(0%)
- Maryland median
- 1.8%
The first three are Google’s own figures for GMP Construction LLC, read on 24 September 2026; the share is of every rating Google has counted, not of the review texts on this page. The median is ours — the middle figure among the Maryland roofers we list with enough ratings to compare.
Rating breakdown
| 5 | 92 | 100% | |
|---|---|---|---|
| 4 | 0 | 0% | |
| 3 | 0 | 0% | |
| 2 | 0 | 0% | |
| 1 | 0 | 0% |
Lower than most — the typical roofer in Maryland sits at 1.8%. A higher share is a reason to read the critical reviews below, not a verdict.
The critical reviews
The one and two-star reviews, first. These are what a star average hides, and they are the reason this page exists.
We hold no one or two-star review text for GMP Construction LLC. That is not the same as there being none — it means our capture did not reach any. The rating breakdown above is Google’s own count and is the number to go on.
What reviewers keep mentioning
Topics Google extracted from this business’s reviews, with how many mention each. These are words that appeared in reviews, which is not the same as a service the business sells.
- gutters29
- gutter replacement16
- free estimate4
- siding repair3
- honest company3
- downspouts3
- courteous staff3
- decking installation2
- on time2
- polite owner2
Other reviews we hold
14 more of the 87 reviews we hold text for, most recent first. We do not hold every review Google has.
- 5 out of 5Darwin Nolasco10 months ago
5 stars, the best... of the best, just call me, you won't regret it, 100% guaranteed
Reply from the business
Thank you very much 😊 …
- 5 out of 5Steve Bissetta year ago
Gaspar, Cesar and their crews have been fantastic! Our roof and gutters look great, and everyone has been super helpful along the way, from questions to concerns. Highly recommend GMP!
Reply from the business
Thank you wea appreciate 🙏 your comments. …
- 5 out of 5youngerEdited a year ago
I would highly recommend GMP Construction to anyone who needs work done at their home. They recently put a new roof and gutters on my house and I am so satisfied with …
Google cut this review short. The full text is on their Google profile.
Reply from the business
Thank you I appreciate 🙏 …
- 5 out of 5Sunnya year ago
I recently put a new roof and gutters on my house with GMP Construction LLC. The owner, Gasper came to my house and gave me a free estimate.He was very nice and responsive. He gave me a good pricing and quick installation. His staff started at 7:30am and finished at 4:30pm. They were very friendly. They cleaned up nicely after they were done. Highly recommended!
Reply from the business
Thank you
- 5 out of 5jeffrey watersa year ago
We have had two experiences with GMP. They replaced our roof in two separate phases in both instances, they were professional, expedient and the workmanship was excellent. I highly recommend GMP. They have demonstrated they are competent, competitive and caring about their work!
Reply from the business
We appreciate 🙏 the opportunity 🙏 thank you 😊 🙏 …
- 5 out of 5Jermaine Williams2 years ago
I recently had roofing and interior done in my home with GMP. This has been a great experience with them. Both parties are very responsive, on time, clean ( didn’t leave anything behind). Provided me with plenty of reasonable options. I plan on using this company again in future. A big thanks again!!!
Reply from the business
All of you are scammers
- 5 out of 5Martín García2 years ago
They just do my roof and gutters I love this company whole his team are very helpful and very professional I do highly recommend and I will hire them for my next project.
Reply from the business
Thank you
- 5 out of 5Leticia Ramirez2 years ago
GMP company is very professional and great costumer service. The price was great when I got my free estimate for my roof. I loved that his crew was friendly and cleaned up nicely after they were done. I will contact GMP company in the future for my roofing and any other projects I may need. Thank you GMP company!
Reply from the business
Thank you very much 😊 …
- 5 out of 5Nicson Medina2 years ago
Great people, great price, super great outcome! Workers really know what they’re doing and can be trusted. Owner is really great and is willing to help you anyway he can! Will use them again in the future!
Reply from the business
Thank you I appreciate 🙏 …
- 5 out of 5Anthony Whitten3 years ago
I'm very pleased. Thanks 👍 …
Google cut this review short. The full text is on their Google profile.
- 5 out of 5Enid Marisol3 years ago
My roof needed to be replaced ASAP and I contacted 2 other companies before to get an estimate before calling GMP After reviewing the description of the proposed services , my mind blew off even though GMP charges were approximately $1600 more than the others two. But the level of professionalism on the proposed contract made my decision easier and I do not have any regret of it. Cesar( the owner) gave a verbal estimate for the roof and also mentioned to replace the gutters with not additional cost. On the day of the job, GMP replaced the roof of my shed at not cost as well. Job was done free of hassle, on time and accurate GMP did an outstanding job to ensure that everything was cleaned when it was completed. Roof looks great and I would hire GMP again in a heartbeat.
- 5 out of 5Miguel Amaya3 years ago
Great team, good company I’m recommend GMP Construction 100% good price
- 5 out of 5kateryn martinez3 years ago
After many mediocre experiences with other construction companies, I can confidently say that GMP Construction has raised the bar for me. Gaspar and his team were all professional and helped us through every step in fixing our roof and gutters. They also made sure to clean up their area afterwards. We are extremely satisfied with the end results and would recommend to anyone in search of upgrading their roof.
- 5 out of 5Maria Jose Benavides3 years ago
Im so happy the just do my roof im so happy i hihgly recomendados gmp they are amazing.
Other roofers in Dundalk
Ranked by how many ratings Google has counted.
| Roofing contractor | Google average | Ratings counted | One and two star | Contact |
|---|---|---|---|---|
| Rays Harford Home Improvement Contractors, Inc.roof replacement, estimate, siding4.9151 ratings1.3% one and two star(410) 893-3037 | 4.9 | 151 | 1.3%2 of 151 | (410) 893-3037 |
| Aero Residential Contractors Inc.punctuality, competitive pricing, job site cleanup4.787 ratings11.5% one and two star(410) 469-1627 | 4.7 | 87 | 11.5%10 of 87 | (410) 469-1627 |
| Riverside Elite Exteriors LLCthorough cleanup, respectful crew, response time5.065 ratings0% one and two star(410) 231-3338 | 5.0 | 65 | 0%0 of 65 | (410) 231-3338 |
| Lane Home Improvement LLCfair pricing, flat roofs, polite crew4.848 ratings4.2% one and two star(410) 487-5632 | 4.8 | 48 | 4.2%2 of 48 | (410) 487-5632 |
| AJB Contractors LLCpricing, roof replacement, workmanship4.646 ratings10.9% one and two star(443) 800-0905 | 4.6 | 46 | 10.9%5 of 46 | (443) 800-0905 |
| Roofs Are USreliability, friendly staff, roofing company4.329 ratings17.2% one and two star(410) 693-7534 | 4.3 | 29 | 17.2%5 of 29 | (410) 693-7534 |
Where this page comes from
Every figure above is Google’s, captured on 24 September 2026. The star average and the 92 ratings behind it are counted by Google across all of its reviews. The review text on this page is a sample — we hold 92, of which 87 have any text — and it is not everything Google shows.
Roof Warden does not verify licenses, bonds, insurance or workers’ compensation cover, and nothing on this page should be read as though we had. Confirm those directly with the contractor and with your state or provincial licensing body before you hire anyone.