Window and Door Installation Serving Franklin, NH

Outdated windows and doors are among the biggest sources of heat loss in older NH homes. A1 Pro installs efficient replacements backed by a 50-year manufacturer warranty and a 5-year transferable craftsmanship warranty.

What A1 Pro Installs in Franklin

A1 Pro installs and replaces windows and doors for homeowners throughout Franklin and the surrounding mill-town communities:

Full-frame window replacement backed by a 50-year manufacturer warranty.
Entry, patio, and interior door installation.
Retrofits that fit older housing stock.
Energy-efficient upgrades that lower monthly heating costs.

One estimate, one price. No surprises.

Window Installation Service

Door Installation for Franklin Homes

See Our Completed Work

Stop Paying to Heat the Outdoors

Old windows and doors waste money every month they stay in place. A free estimate shows you exactly what a replacement would cost.

Signs Your Windows or Doors Need Replacing

Not sure if it’s time to repair or replace? Homeowners usually call us when they notice:

Drafts near the frame even with everything closed.
Windows or doors that stick, warp, or won’t latch.
Fog or condensation between glass panes.
Heating bills climbing for no clear reason.
Wood rot or soft spots around the frame.

A free inspection tells you whether repair or replacement is the better move.

Serving Franklin and the Surrounding Area

Why Franklin Homeowners Choose A1 Pro

A1 Pro pulls a permit on every job, backs every installation with a 10-year labor warranty, and gives you honest, upfront pricing, no hard sell, no surprises.

10-Year Labor Warranty

Permits Pulled on Every Job

Free, No-Pressure Estimates

What Our Customers in Franklin Say

Brandon Stachulski

Exceptional craftsmanship and outstanding quality. Despite unexpected challenges like exposing rot, they adapted quickly and delivered within the original timeline. Special thanks to Ed in sales, owner Luis, and the entire team on-site.

Casey G.

A1 Professional came quickly to give me a quote for a large deck. Gave me a great price and started on time. They took care of permits and was here every day until they finished. They are the best I’ve ever worked with!!

Nicolas Kensington

Great design and build — new deck, clearing trees and a pathway to my lake. Quality exceeded expectations, completion time was impressive and the price was reasonable. Will use them again.

Cheryl Sealey

A1 did a wonderful job, quoted and done in 1 day. My garage roof looks great too. I highly recommend this company. Thank you for your professionalism. — C Sealey

Mary Brown

Great guys to work with. My chimney replacement looks great. Company is very responsive, got back to me with an estimate within the week after inquiring about the leak around my chimney.

Leslie Badore

A1 Professional did a great job installing siding on our home. The crew is neat, professional and hard-working. Everyone is polite and easy to work with. We are so pleased and will be happy to recommend them in the future. Well done!

Get Your Free Franklin Estimate

One visit, one honest number, no obligation. Military and senior discounts available.

Frequently Asked Questions

How much does it cost to replace windows in an older home?

Older homes sometimes need extra work on the frame, which can affect the price. A1 Pro inspects your home and gives you an exact number on the spot, not a rough estimate.

How messy is window and door installation?

Less than most people expect. Crews protect flooring and furniture near the work area and clean up before leaving, so disruption stays minimal inside the house.

Are new windows worth the investment?

For most homes with drafts or rising heating bills, yes. New windows pay back through lower energy costs and fewer repairs, and they come with a warranty your old windows never had.

How do I know A1 Pro's pricing is fair?

A1 Pro gives every homeowner the same on-the-spot itemized pricing with no hidden fees. If a competitor’s estimate looks different, we’re happy to explain exactly where the numbers come from.