Roofing contractor
Prospect Waterproofing Company
118 Acacia Ln #00, Sterling, VA 20166
Listed under Ashburn, VA
- Google average
- 4.4
- Ratings counted
- 22
- One and two star
- 3 of 22(13.6%)
- Virginia median
- 1.7%
The first three are Google’s own figures for Prospect Waterproofing Company, 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 Virginia roofers we list with enough ratings to compare.
Rating breakdown
| 5 | 17 | 77% | |
|---|---|---|---|
| 4 | 1 | 5% | |
| 3 | 1 | 5% | |
| 2 | 1 | 5% | |
| 1 | 2 | 9% |
Much higher than most — the typical roofer in Virginia sits at 1.7%. 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.
All 3 of the one and two-star reviews we hold for Prospect Waterproofing Company, most recent first.
- 2 out of 5Shari Barnesa year ago
Unresponsive to emails and no one directly picks up the phone for direct phone calls. If you leave a voicemail the likelihood of it being returned is unlikely. Specifically for commercial department.
- 1 out of 5Jorge Medina3 years ago
No good !!!!
- 1 out of 5James Covington6 years ago
This company left my car covered in dust and dirt. I didnt even get an apology. Just an offer to wait for 10 minutes during my busy day for someone to come with an air blower to blow it all off. They also leave the work area a mess after leaving site.
Other reviews we hold
3 more of the 6 reviews we hold text for, most recent first. We do not hold every review Google has.
- 5 out of 5Wells Turnagea year ago
This is one the most reputable and consistent commercial waterproofing companies in the DMV. A go to subcontractor for several decades!
- 5 out of 5Edgar Melgar4 years ago
Excellent company
- 5 out of 5Rebecca Larson6 years ago
Great work and helpful staff
What Prospect Waterproofing Company says about itself
Taken from the business’s own website. We have not checked any of it. These are quotes, not credentials — a roofer writing “licensed and insured” on their homepage is not evidence that they are.
States a founding year
“…construction industry leaders since 1992, we serve clients from Baltimore, MD…”
Other roofers in Ashburn
Ranked by how many ratings Google has counted.
| Roofing contractor | Google average | Ratings counted | One and two star | Contact |
|---|---|---|---|---|
| Peak Roofing Contractors Inc.roof replacement, estimate, siding replacement4.9631 ratings1.9% one and two star(703) 753-4585 | 4.9 | 631 | 1.9%12 of 631 | (703) 753-4585 |
| VA Exteriorssiding replacement, debris cleanup, wind damage repair5.0106 ratings0% one and two star(571) 438-3538 | 5.0 | 106 | 0%0 of 106 | (571) 438-3538 |
| Katchmark Construction, Incsiding, cost, estimate4.284 ratings17.9% one and two star(703) 817-0200 | 4.2 | 84 | 17.9%15 of 84 | (703) 817-0200 |
| Panda Exteriorsinsurance claims, timeliness, roof quality4.783 ratings7.2% one and two star(571) 223-6374 | 4.7 | 83 | 7.2%6 of 83 | (571) 223-6374 |
| Beyond Exteriorspricing, gutters, siding matching4.777 ratings5.2% one and two star(703) 997-9175 | 4.7 | 77 | 5.2%4 of 77 | (703) 997-9175 |
| HARK Roofinginsurance handling, roof replacement, easy process4.760 ratings6.7% one and two star(703) 759-6730 | 4.7 | 60 | 6.7%4 of 60 | (703) 759-6730 |
Where this page comes from
Every figure above is Google’s, captured on 24 September 2026. The star average and the 22 ratings behind it are counted by Google across all of its reviews. The review text on this page is a sample — we hold 22, of which 6 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.