What Really Sets New Siding Cost on a Centerville Home
Eight line items decide the total. Learn to read them, and every quote on the kitchen table gets easier to compare.
By Corey Thrush · Siding & Exterior Desk
Your new siding cost is not a mystery number; it is a stack of line items, and you can read every one of them. For homeowners in Centerville and Kettering, the same eight drivers show up on nearly every estimate: how much wall there is, what comes off, what goes under, which panel goes on, the trim around it, how high the crew works and the paperwork that keeps the job legal.
The trouble is that quotes rarely list those drivers the same way. One contractor bundles trim into the panel price. Another lists soffit separately. A third never mentions house wrap. Side by side the totals look random, but the new siding cost inside each one is built from the same parts.
This edition covers the math a crew uses, the drivers that move the total and a classifieds-style checklist. Build your own estimate sheet halfway down the page, and you will know what to ask before anyone climbs a ladder.
Measure your walls in squares, list the eight drivers, and ask every contractor to quote the same scope. Then the totals finally make sense.
The Square-Foot Math Behind Every Quote
Siding is sold and installed by the square. One square covers 100 square feet of wall, and it is the unit most estimates of new siding cost are built on.
- Measure each rectangular wallWidth times height, up to the soffit. A 40-foot wall that is 9 feet tall is 360 square feet.
- Add the gablesA triangle is width times height divided by two. A 28-foot gable rising 8 feet adds 112 square feet.
- Ask about openingsSome contractors subtract large openings; some don’t.
- Divide by 100Those two walls total 472 square feet, or 4.72 squares.
- Expect a waste allowancePanels get cut at corners, gables and openings, so every quote adds extra material. Ask what allowance was used.
Your count won’t match a contractor’s exactly, and it doesn’t have to. If two quotes differ by several squares, though, one of them measured a different house. That single number explains more of the gap in new siding cost between bids than anything else.
Your new siding cost depends on your squares and scope.
“Ask every contractor how many squares they priced. That one number explains most of the gap.”From the Math Desk
Eight Line Items That Move New Siding Cost
Each driver below adds material, labor hours or risk a contractor has to price in. Read them like news briefs.
01Wall Area, in Squares
The biggest driver, and the one you just measured. More squares means more panels, more fasteners and more hours. A ranch and a two-story on the same footprint can differ by many squares, so new siding cost follows the wall, not the floor plan.
02Tear-Off and Disposal
Removing old siding takes labor, and the debris has to be hauled away. Some homes hide a second layer, or old wood or aluminum under the vinyl. Ask whether removal and disposal are in your new siding cost or assumed.
03Sheathing and House Wrap
Once the old siding is off, the crew sees the wall underneath. Soft or water-stained sheathing has to be replaced before panels go up, and a weather-resistive barrier such as house wrap goes over it. A clear quote says how sheathing will be priced if it turns up, so your new siding cost doesn’t jump midway.
04Profile and Thickness
Vinyl comes in clapboard, Dutch lap, shakes, vertical panels and more, in different panel thicknesses. Heavier panels and specialty profiles generally raise new siding cost on the material line. Our guide to the types of vinyl siding shows how the profiles differ.
05Insulated Backer
Insulated vinyl adds a contoured foam backing bonded to the panel. It changes the material line and makes the wall feel more solid. See how it affects new siding cost next to other siding upgrades.
06Trim, Soffit and Fascia
Window and door surrounds, corner posts, J-channel, frieze boards, soffit and fascia wrap all take time to fit. A quote that says “trim included” should name the pieces. New vented soffit and fascia wrap often appear as their own lines, and they can move new siding cost more than homeowners expect.
07Stories and Access
Every story adds ladder or staging time. Sloped lots, decks and tight side yards slow a crew down. A tall gable takes longer than a one-story wall of the same area, and that time lands in your new siding cost.
08Permits and Lead-Safe Rules
Centerville’s Do I Need Approval? page says work can fall under several offices; siding is not on its building inspection list, so call Building Inspection at 937-428-4786 to confirm. Kettering homeowners should check with their own city. For homes built before 1978, the EPA’s lead-safe RRP rule generally requires a certified firm when exterior work disturbs more than 20 square feet of paint.
Build Your Estimate Sheet
Check the lines that describe your house. The sheet tallies the drivers that will shape your new siding cost, and each line tells you what to ask. No prices here; those come from a real measurement.
Classifieds: The Line-by-Line Quote Checklist
Clip these and keep them by the phone. Most come from the Ohio Attorney General’s home improvement tips; the rest make new siding cost comparable across quotes.
- One total, no lines. You can’t compare new siding cost when the scope is a single number.
- Silence on sheathing. No plan for what happens if the wall under the old siding is soft.
- A square count far off the others. Ask why before you assume it’s a bargain.
Letters to the Siding Desk
Dear Courier: Two quotes on my Kettering split-level are far apart. Which one is wrong?
Puzzled on a Cul-de-SacMaybe neither. Compare squares first, then tear-off, wrap, trim and soffit. Most gaps in new siding cost come from scope. If one bid skipped a line, ask for it so both quotes describe the same job.
Dear Courier: Can I side right over the old stuff to save money?
Thrifty in CentervilleSometimes a crew can install over a flat, sound wall, but you lose the chance to see the sheathing. Ask each contractor what they recommend, in writing. Our look at vinyl siding installation problems shows what can hide under panels.
The Takeaway Worth Sharing
A siding quote is a story told in squares and line items. Read the lines, and new siding cost stops being a surprise.
Pass this edition to the neighbor who just got a first siding quote.
Got a Quote to Read? Let’s Measure Yours
Thrush & Son®: family-owned exterior pros since 1960.
In Centerville, Kettering or anywhere in the Miami Valley, we’ll measure your walls, walk you through every line of your new siding cost and put the numbers in writing. Want a look first? Read our Centerville siding style guide.
➡️ Schedule in Dayton➡️ View All ServicesCall (937) 833-5136 · 115 Jefferson St, Brookville, OH 45309
- GAF President’s Club Contractor
- Best of Dayton 2024 Winner · 2025 and 2026 Finalist
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- Since 1960
Further Reading
Official sources: the Ohio Attorney General, the U.S. EPA and the City of Centerville.
New Siding Cost FAQ
How much does new siding cost in Centerville, OH?
It depends on your squares, tear-off, sheathing and wrap, panel profile, insulation, trim, soffit and access. Ask each contractor how many squares they priced, so every quote is measured on the same house.
What is a square of siding?
A square is 100 square feet of wall. Multiply each wall’s width by its height, add gables at width times height divided by two, then divide the total by 100.
Why are my siding quotes so different?
Usually the scope differs. Compare the squares priced, then tear-off, house wrap, trim, soffit and fascia line by line, and ask each contractor to quote the same job.
Do I need a permit for siding in Centerville?
The city’s Do I Need Approval page does not list siding under building inspection, but work can fall under several offices. Call Centerville Building Inspection at 937-428-4786 to confirm before work starts.
Does lead paint affect new siding cost?
It can. If your home was built before 1978 and the job disturbs more than 20 square feet of exterior paint, EPA rules generally require a lead-safe certified firm, which adds setup and cleanup steps.
Written by Corey Thrush, Vice President and third generation of Thrush & Son®.
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