How much do new siding, windows, doors or a deck cost in Pennsylvania?

Updated November 10, 2026 · KeystoneProGuide editorial team

What does exterior remodeling cost?

It depends far more on the job than on the trade. The published national surveys put a full siding replacement roughly between $8,000 and $30,000, a replacement window at roughly $450 to $1,200 each, a door installation at roughly $500 to $2,000, and a new deck anywhere from $4,339 at the bottom of one survey's range to $20,000 at the top of another's. None of these surveys publishes a Pennsylvania or county figure, so treat every number below as a national starting point, not a local quote.

The table gathers the headline figures. Each comes from the publisher named, as that publisher gives it.

Why do the surveys disagree?

Because they measure different things. This Old House's window figure comes from its own 2026 survey of 1,000 window customers, which found an average of $517 per installed window and $7,183 per project. Fixr's per-window range is built from window size, type and materials. Angi's door figure is an average of 6,453 projects reported by its contractors, and covers interior as well as exterior doors. This Old House says its siding prices were generated with Homewyse, an estimating platform used by contractors. HomeAdvisor's deck page says it was updated using automation, and Fixr's deck page was last updated in January 2023, older than the rest. Where two surveys exist for one job, both are shown above; neither is more official than the other.

What changes the price of siding?

Mostly the material and the size of the walls. This Old House gives installed costs per square foot of about $6.13 for vinyl, $7.32 for aluminum, $9 for fiber cement, $11.70 for cedar, $14.16 for stone veneer and $20 for brick veneer, and an average of $12,252 for vinyl on a 2,000-square-foot home. Fixr's siding guide gives $3 to $15 per square foot installed, and lists two extras that a quote may or may not include: $1,000 to $2,500 to remove and dispose of the old siding, and repairs to rot or water damage found underneath, which it does not price.

What changes the price of windows?

Frame and glass, according to both window surveys. This Old House's survey averages run from $453 for aluminum frames and $472 for vinyl to $544 for wood and $564 for fiberglass, and from $400 for single-pane glass to $529 for double-pane and $609 for triple-pane. Fixr's ranges by frame are wider, from $350 to $800 for vinyl and $600 to $2,000 for wood. One survey figure is worth keeping in mind when you compare bids: 27% of the homeowners This Old House surveyed paid more than their original quote.

ENERGY STAR adds a practical point. It says certified windows may cost more than non-certified ones, but the labor should be comparable, and it suggests asking each installer to break the quote into labor and materials, since different dealers may quote different prices for the same product.

What changes the price of a door or a deck?

For doors, Angi's ranges run from $200 to $1,800 for a standard single door to $1,200 to $4,500 for a sliding door, with $40 to $200 to remove and dispose of the old one.

For decks, size, height and material decide most of it. HomeAdvisor gives labor of $15 to $35 per square foot, pressure-treated lumber at $2 to $5 per square foot and premium composites at $12 to $22, plus $5 to $15 per square foot to tear out an old deck and $230 to $500 for a permit. Fixr's figures assume a 320-square-foot composite deck with railings for its $14,000 average, and run from $1,500 for a small pressure-treated deck to $40,000 for a large hardwood deck with a roof.

What about permit fees?

They are set locally. Fixr gives $150 to $1,500 for siding permits and inspections, and HomeAdvisor $230 to $500 for a deck. In Philadelphia, the city adds a $3 city surcharge and a $4.50 state surcharge to each permit on top of the fee for the work. Whether your job needs a permit at all is a separate question, covered in what Pennsylvania requires.

How much should you pay up front?

Pennsylvania sets a ceiling. On a home improvement contract over $5,000, the Home Improvement Consumer Protection Act bars a contractor from taking a deposit larger than one-third of the price, or one-third plus the cost of special order materials named in the contract, and bars any payment before the contract is signed. The contract must list the down payment and the special order amount separately. The Attorney General suggests paying the balance in stages as work progresses, with the final payment on completion.

On a $15,000 siding job, that ceiling is $5,000 plus any special order materials written into the contract. If your windows or door are made to order, the special order line matters: the act defines special order material as product that is not a stock item, is ordered for that contract and cannot be returned for credit. The act also makes it a crime to misrepresent an item as special order material or its cost.

Is there still a tax credit for new windows or doors?

Not for new work, according to the IRS. Its page on the energy efficient home improvement credit says it covered improvements made through December 31, 2025. For that period it was worth 30% of the cost, capped at $600 a year for windows and skylights and $250 per exterior door, and labor did not count. Utility rebates are separate, and ENERGY STAR says many utilities offer them.

How do you compare two quotes fairly?

Ask each contractor to price the same scope: the same material and product line, the same number of windows or square feet, removal and disposal included or excluded on both, the same trim and flashing work, and permit fees named. Then compare the payment schedule against the deposit limit above. How to choose a contractor covers the checks that go with the price, and businesses are listed on the exterior remodeling page.

Sources

1. Siding Replacement Cost (2026 Pricing), This Old House
2. How Much Does It Cost to Replace Siding? [2026 Data], Fixr
3. Window Replacement Cost (2026), This Old House
4. How Much Does Window Replacement Cost? [2026 Data], Fixr
5. How Much Does Door Installation Cost? [2026 Data], Angi
6. How Much Does It Cost to Build a Deck in 2025?, HomeAdvisor
7. How much does it cost to build a deck?, Fixr
8. Residential Windows, Doors, & Skylights, ENERGY STAR (U.S. Environmental Protection Agency)
9. 2008 Act 132 (Home Improvement Consumer Protection Act), Pennsylvania General Assembly
10. Frequently Asked Questions: Home Improvement Contractor Registration, Pennsylvania Office of Attorney General
11. Energy Efficient Home Improvement Credit, Internal Revenue Service
12. Get permits without plans (EZ permits), City of Philadelphia