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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon34
    Verified gutter repairs and replacements reviews

Top-Rated Gutter repair and replacement pros in Dover - Updated Nov 2026

Avatar for The Brothers that just do Gutters Manchester NH
The Brothers that just do Gutters Manchester NH
4.9(
15
)
Seamless Metal Gutters - InstallSeamless Metal Gutters - RepairGutter Covers and Accessories - Install or Replace+1 more

Serving Dover, NH and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"From estimate to installation, Brothers that just do Gutters provided outstanding customer service. The project estimate was detailed and clearly explained. All my questions were answered. I received timely updates about the schedule. The installation crew arrived on time. The crew chief walked me through the installation steps to ensure we were on the same page. I highly recommend this company and will will definitely call them for any future gutter projects."
Gutter Install and Guards
Gutter Install and Guards
Youth Soccer
Portsmouth, NH
Gutter Intern

+67

Response time1 day
15 neighbors recently requested a quote
Recommended by7%of homeowners
Avatar for LANES GUTTERS CORP
LANES GUTTERS CORP
5.0(
13
)
Gutter Covers and Accessories - Install or ReplaceCopper Gutters - RepairGalvanized Gutters - Repair+2 more

Serving Dover, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Credit card accepted

"We had a tree growing out of the left corner of our second story gutter. Caio Lanes from Lanes Gutters called and we set up a day and time. He arrived a little after our appointed time but he'd called to say he was going to arrive later. He went right up the ladder and took pictures of the gutter and tree. The 12" to 15" tree was growing in a large amount of damp soil like debris that was clogging the gutter. Clearly we needed to have the entire gutter cleaned. Caio took off the leaf filters, removed the debris, reinstalled the leaf filters and worked his way across the 36 feet length of the front gutter. He worked quickly, had a nice personality and my wife and I are very pleased with the quality of his entire approach. We're going to have him back to clean more sections of our gutters."
Response time2 days
Response rate94%
1 neighbors recently requested a quote
Avatar for Quality Insulation of Portsmouth
Quality Insulation of Portsmouth
5.0(
2
)
Seamless Metal Gutters - InstallSeamless Metal Gutters - RepairCopper Gutters - Repair

Serving Dover, NH and surrounding areas

Approved (Corporate)

In business since 1975

Free estimates

Credit card accepted

"Quality insulation really lived up to their name! We had a great experience from start to finish. Joe, our salesman was super responsive and knowledgeable during the process. The installation specialists were professional and tidy. I would definitely recommend them to anyone that is in need of insulation."
PHOTOS
PHOTOS
PHOTOS
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Response time2 days
15 neighbors recently requested a quote
Roofing
New to Angi
Copper Gutters - RepairGalvanized Gutters - RepairGutter Covers and Accessories - Install or Replace+4 more

Serving Dover, NH and surrounding areas

Approved

Experienced Roofer, siding expert , crews on demand, capable of building decks, replacing windows and doors and doing full construction builds in any exterior remodeling. Snow, ice dam removal, leak mitigation, and repair as well as roof shoveling in the winter.\n\nAll jobs commercial/ residential/industrial\n\nFully licensed and insured

2 neighbors recently requested a quote
Avatar for IronCAD
IronCAD
New to Angi
PVC Gutters - Repair

Serving Dover, NH and surrounding areas

Approved

Free estimates

Warranties offered

Small jobs welcome

IronCAD LLC (Residential Plans & Carpentry Services)\nEdgar Almonte \nBased in Lower-NH\n\nBeen working in the Building, Fabrication and Design Planning Field for 20yrs.\nWork-Travel Radius included NH & MA, and Lower-ME.\nExpertise in a wide-variety of disciplines and trades.\nSole-proprietor for Small to Mid-Size Jobs in which Bids will be reasonable. \nInsured Contractor \n

16 neighbors recently requested a quote
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Gutter Repair and Replacement FAQs, answered by experts

Gutters should not drip at the seams. This problem could indicate that water is collecting in the gutters instead of moving to the downspouts. You could have leaves or other debris blocking the flow of water at the seams. Try cleaning the gutters, adjusting the slope, and sealing any holes or cracks in the material to fix this problem.

Calcium chloride does not do significant damage to gutters when used properly and in moderate amounts. If you use too much too frequently, it could eventually cause corrosion in your gutters. Rock salt will harm your gutters, though.

Frequently, when water flows over gutters, it indicates a potential clog, necessitating cleaning. For instance, if a twig becomes lodged in the downspout, it can lead to a traffic jam, causing more leaves and sticks to accumulate. Another potential issue is an incorrect pitch, as gutters should channel water toward the downspout. If you observe water overflowing the end cap or leaking through it, it suggests that your gutters are improperly tilted.

How you stop water from leaking between your gutters and fascia depends on the cause of the leak. Some leaks can be fixed simply by cleaning out clogged gutters or downspouts. Other leaks require you to seal holes or cracks in your gutters. Meanwhile, some leaks are a structural issue that requires replacing, changing, or adjusting your gutter system.

Absolutely—and lots of it. Overflowing water from your gutters can damage your siding and your roof. All of the moisture getting into the cracks and crevices of your home can lead to mold or mildew problems down the line. In addition, when water pools around your home, it needs a place to go—and sometimes it ends up inside the house, creating a very unwanted flood.

The Dover, NH homeowners’ guide to gutter repairs and replacements

From average costs to expert advice, get all the answers you need to get your job done.