Middletown★ 4.9 · 175Roofing contractor in Middletown. Customers mention siding replacement, chimney cleaning and window installation.
(302) 691-9891View profile
#3of 3 in Middletown
4.64Weighted score
53Google reviews
3Photos
About Diamond State Roofing
Diamond State Roofing, also called Diamond State Roofing & Gutters, is a Middletown contractor offering roofing and gutter installations, repairs, routine maintenance and upgrades suited to Delaware weather. Painting is listed as a second service, and the team also installs gutter systems built to handle heavy rainfall. Rated 4.7 from 53 Google reviews, 49 of them five stars and 3 one star.
It ranks #3 of 3 roofers on our Middletown page by review-weighted score.
Listed here since . Listing compiled from its public Google Maps profile on 2026-10-19. Report a correction or request removal · Back to roofers in Middletown
Hours and contact
Contact
- (302) 344-8177
- 343 S Parkway Dr, Middletown, DE 19709
- Roofing contractor
Hours
Hours
| Monday | 9AM–5PM |
| Tuesday | 9AM–5PM |
| Wednesday | 9AM–5PM |
| Thursday | 9AM–5PM |
| Friday | 9AM–5PM |
| Saturday | 9AM–5PM |
| Sunday | Closed |
Google reviews
4.7★★★★★53 reviews on Google
What reviewers talk about
Alyssa5 months ago “John created a contract to work on fixing my barn roof. They came and performed maybe one third of the job. Since then have not heard back from John despite multiple efforts to contact in order to get the job finished. He was paid up front so we are very angered to have lost the money with the job not completed.”
Google reviewer “Our roof looks brand new, and the gutters function perfectly.”
Review excerpts from Google. Read all 53 reviews on Google Maps ↗
★ Write a reviewWorked with Diamond State Roofing? Leave a review on Google. It appears here after our next update.
Review analysis
How its Google reviews compare with 31 other rated roofers in New Castle County, and what stands out for and against it.
Diamond State RoofingOther New Castle County roofers
Google rating4.74.9
Number of reviews (median)5378
Five-star reviews92%97%
One- and two-star reviews6%2%
Pros
- Rated 4.7 from 53 Google reviews, a large enough count to show consistent work.
- 92% of its reviews are five stars.
- Reviewers most often mention cleanliness (6), friendly team (5) and work quality (5).
Things to check
- Its rating is below the New Castle County average of 4.9.
- No website to check its work or credentials.
- 3 of its 53 reviews are one or two stars. Read them and how the company replied.
- Fewer reviews than most New Castle County roofers (53 against a typical 78).
- Unclaimed listing: the owner hasn't confirmed these details yet, so check services and hours when you call.
- We don't verify licenses or insurance. Ask for its Delaware business license number and a certificate of insurance before you sign.
Based on its Google rating, star breakdown and review topics, and on what the business states about itself. Comparisons use the average of the other rated roofers listed in New Castle County (the median for review counts).
Other top roofers in Middletown
Middletown★ 4.9 · 175
Middletown★ 4.9 · 44Roofing contractor in Middletown. Customers mention informative crew, quick estimate and fast repairs.
(302) 676-6348View profile