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Roof Warden

Roofing contractor

Grant & Sons Roofing & Siding

606 Milford Harrington Hwy, Milford, DE 19963

Listed under New Castle, DE

Google average
4.7
Ratings counted
83
One and two star
7 of 83(8.4%)
Delaware median
1.5%

The first three are Google’s own figures for Grant & Sons Roofing & Siding, 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 Delaware roofers we list with enough ratings to compare.

Rating breakdown

4.7
83 ratings
How the 83 ratings break down, from five stars to one
5
7590%
4
11%
3
00%
2
00%
1
78%
8.4%of these 83 ratings are one or two stars (7)

Higher than most — the typical roofer in Delaware sits at 1.5%. 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 7 of the one and two-star reviews we hold for Grant & Sons Roofing & Siding, most recent first.

  • 1 out of 5Brandon Gatling4 months ago

    Never received my quote, waited 3 days for an answer I still had to call them, and yet still didn’t receive an email or quote. Just admit you didn’t want to provide services at my home.

  • 1 out of 5Lance Tressler3 years ago

    This company is a joke, their receptionist could not even call me back. After four days and countless phone calls, I had to go with another company. Would not recommend them for any roofing repairs. The worst customer service I have experienced.

  • 1 out of 5KIRT BORDELON7 years ago

    If I could give negative Stars I would. I wouldn't do business with these people if they were free

  • 1 out of 5Donna McCrary7 years ago

    And never got a call back so we went elsewhere.

  • 1 out of 5Santa8 years ago

    We hired Grant and Son's to reshingle our roof. There was rotten wood around some sky lights that they replaced. While the guys were working they dented out gutters with their ladders and said they would fix it, no one ever did. After the first rain we had a sky light leaking, the woman on the phone was rude but sent someone out. That guy says there is no flashing that's why it's leaking. He pumps some caulk above the window and we get a bill for 25 bucks. Call after call NO RETURN CALL and they never fixed the flashing or leak.

  • 1 out of 5darell strawther10 years ago

    Whoever answered the phone needs to be fired , experience with her was totally unpleasant so I googled another company in the area and they installed my roof , I am a buyer and this company lost a lot of business within a short conversation , I will make sure the other contractors/buyers do not work with this company .

  • 1 out of 5Nate10 years ago

    Customer service (secretary) is very unpleasant and combative.

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.

  • estimate quote4
  • courteous staff4
  • efficient work crew2
  • shingle repair2
  • family owned2
  • prompt response2
  • timely completion2
  • showroom2
  • thoroughness2
  • job well done2

Other reviews we hold

14 more of the 49 reviews we hold text for, most recent first. We do not hold every review Google has.

  • 5 out of 5Carol Brown8 months ago

    Exceptional work. We had our roof which is very large replaced and they did superior work which included repairs to some sections of the roof after removing the old shingles. The new shingles are exactly what we wanted. The work crew was efficient and very professional. Mr. Grant and his son were diligent supervising the work and worked to make sure everything was cleaned up. They even came back and swept are the yard for nails. Highly recommend them!

  • 5 out of 5Deborah Mackeya year ago

    I'm a newer resident of DE. It is a wonderful feeling to find someone to help in your hour of need. Bob Grant & sons was that help. They responded promptly to my email and arrived to fix the problem within a few hours. This is the kind of …

    Google cut this review short. The full text is on their Google profile.

  • 5 out of 5Gloria Steelea year ago

    Excellent company to work with! They are thorough, very fast, professional and HONEST! I highly recommend them!

  • 5 out of 5JOJOS Managementa year ago

    Wow! Professional, to the point, quick, clean and on time! Would recommend to a friend.

  • 5 out of 5Patti P3 years ago

    Very happy with the service and timeliness.

  • 5 out of 5Phil Wojcik3 years ago

    We started having an issue with water spots showing up on the ceiling of our master bedroom after multiple days of heavy rains. From what I could see, it looked like the collar around the vent pipe had cracked. I called and Robert came out to check it out, and said he could repair everything while he was there. That was fantastic, since we have never had a company do same day work. The work he did was fantastic and even explained exactly what he was going to do. Our roof is starting to get up there in age, and know when we go to have it replaced, Grant and Sons is the first one we are going to call. Stellar job!

  • 5 out of 5Mathew Cole3 years ago

    Great company good work

  • 5 out of 5dukeEdited 4 years ago

    Grant and Sons did the roof on my pre1900's house in Harrington, De. It had three layers of old asphalt shingles over cedar shakes. It was a big, nasty job. But Bob, and his crew, came in handled business. Not only were they the cheapest …

    Google cut this review short. The full text is on their Google profile.

  • 5 out of 5Dayle Harris4 years ago

    I would highly recommend these people. Very professional and did a great job. They were punctual, courteous and cleaned up very well.

  • 5 out of 5Darlene Austin4 years ago

    Fast and reasonably priced service for roof repair. For decades my family has used Grant & Son for decades for several roof replacements and repairs in residences, rental houses, and garages. We wouldn't consider any other roofing company.

  • 5 out of 5Garrett Jenkins4 years ago

    Grant and Sons did an amazing job putting on my new roof. The office staff was friendly and knowledgeable. The roofers were on time and did a fantastic job. No wonder they've been around for so long. Would certainly recommend to friends and family.

  • 5 out of 5Scott ganley5 years ago

    Thanks so much, everything worked out perfect!

  • 5 out of 5Morgan Popovich6 years ago

    Amazing people and wonderful work ethic! You won't be disappointed!

  • 5 out of 5Malisa Zirn6 years ago

    Excellent job from estimate quote to the last shingle. Left yard and work space clean - would not have known they were here if not for the new roof. They went the extra mile. Highly recommend!!!

What Grant & Sons Roofing & Siding 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.

  • Warranty offered

    “…for proper watertight installation guaranteed for the life of your roof. Ridge Vent…”

  • States years in business

    “…Showroom "I've been a contractor for over 35 years and I've seen it all. And I know the…”

  • Family owned

    “…3M has all of those in spades." Family owned and operated for over fifty years…”

Other roofers in New Castle

Ranked by how many ratings Google has counted.

Other roofers we list in New Castle
Roofing contractor
All American Roofing & Remodelingestimate, new windows, polite staff4.6196 ratings9.7% one and two star(302) 250-9247
Yellowfin Roofingprofessional crew, smooth process, gutter replacement4.9175 ratings0.6% one and two star(302) 291-3940
Dynamic Remodel and Repairsiding installation, professional crew, siding replacement4.9163 ratings1.8% one and two star(302) 668-8538
Roofer | J.R. Walker Roofing | Hockessin DE Contractorexcellent work, flat roof, siding4.8133 ratings3.8% one and two star(302) 761-3744
Bayside Exteriorssiding, honest owner, efficient workers4.8124 ratings4.0% one and two star(302) 200-7663
Platinum Roofscourteous workers, clean job site, leak detection5.0122 ratings0% one and two star(302) 226-4510

All roofers in New Castle →

Where this page comes from

Every figure above is Google’s, captured on 24 September 2026. The star average and the 83 ratings behind it are counted by Google across all of its reviews. The review text on this page is a sample — we hold 83, of which 49 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.