Henry Check

Understand your siding estimate before you sign

Already have a written siding estimate? Type it into Henry Check or upload a PDF or photo. See your proposal next to published, cited price ranges, along with red flags and questions to ask. You can then be matched with up to 3 local pros for more estimates.

A siding quote needs to describe more than the visible panels. Removal, the water-resistive barrier, window flashing, trim, and concealed wall repairs can change the scope substantially. Use this checklist to identify what your contractor included and what could become an added charge.

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Published price ranges

Each range is shown with who published it. Henry Check also uses the ranges from Henry's city guides near your ZIP.

Work	Range	Published by
Vinyl siding	$400 – $900 per square	Homeowner Henry's national siding guide
Engineered wood siding	$600 – $1,200 per square	Homeowner Henry's national siding guide
Fiber cement siding	$700 – $1,500 per square	Homeowner Henry's national siding guide
Wood siding (cedar)	$800 – $1,600 per square	Homeowner Henry's national siding guide
Tear-off and disposal	$100 – $300 per square	Homeowner Henry's national siding guide
House wrap	$50 – $150 per square	Homeowner Henry's national siding guide
Soffit and fascia	$15 – $40 per linear foot	Homeowner Henry's national siding guide
Whole-house replacement (1,500–2,500 sq ft of wall)	$8,000 – $30,000	Homeowner Henry's national siding guide

What drives siding replacement and repair cost

Start with exterior wall area, not the home’s interior floor area. Ask for measurements by elevation, including gables, and an explanation of how window and door openings are deducted. If the proposal uses squares, one square means 100 square feet of siding coverage; confirm whether the quantity also includes waste.

Material specifications matter: vinyl profile and thickness, insulated backing, fiber-cement lap exposure, engineered-wood panel style, cedar grade, and factory versus field-applied finish are not interchangeable. Multiple stories, steep ground, dormers, detailed corners, and limited access add setup and cutting work.

For repairs, separate the damaged panels from the cause of damage. A cracked panel and a leak at a roof-to-wall intersection need different scopes. Ask whether the quote covers a small patch, complete courses, or an entire elevation, and whether discontinued profiles or faded colors limit the match.

Read the wall assembly, not just the panel allowance

The Department of Energy explains that a drainage plane behind exterior cladding gives water a path down and away from the wall. Your estimate should identify the water-resistive barrier, how its seams and transitions will be handled, and how it connects to flashing around openings and penetrations.

Distinguish decorative trim from water-management work. J-channel around a vinyl-sided window is not a substitute for a documented flashing detail. Ask how the crew will handle window heads, roof-to-wall intersections, decks, light fixtures, hose bibs, and the bottom edge of the wall.

Installation details depend on the product. The Vinyl Siding Institute manual calls for movement allowance and cautions against tight fastening and caulking panel overlaps or receiving channels. Fiber-cement clearances and fastening details must follow the selected manufacturer’s instructions. Request the applicable instructions rather than accepting one installation method for every material.

Compare two or three estimates on the same scope

Put the proposals side by side using the same elevations, product line, profile, finish, and trim package. Separate full tear-off from installation over existing cladding. An overlay proposal should explain the substrate condition, fastening approach, and treatment of existing trim and openings; it is not the same work as removal and rebuilding the drainage layer.

Make each contractor label inclusions, exclusions, and allowances. One proposal may include soffit and fascia replacement while another leaves them untouched. Gutters, downspouts, shutters, exterior lights, and utility attachments also need a written remove-and-reset or exclusion statement.

Ask for a concealed-damage process before comparing totals. Request photos after removal, a defined unit for sheathing repairs, and written approval before extra work starts. Structural framing damage needs its own assessment and scope; a sheathing allowance does not describe rebuilding a damaged wall.

Confirm local requirements and old-material precautions

Licensing and permit rules vary by state/city. Check contractor requirements with the relevant licensing authority and ask the local building department whether this siding scope needs a permit or inspections. Record who will obtain any required permit and arrange inspections before the wall is covered.

For pre-1978 homes, ask whether removal or preparation will disturb painted surfaces and how applicable EPA lead renovation requirements will be handled. EPA notes that newer siding installed over older painted surfaces does not by itself remove lead-rule concerns. Request the contractor’s explanation of testing, certification, containment, and cleanup as applicable.

If old siding may contain asbestos, do not identify it by appearance or break off your own sample. EPA recommends trained, accredited professionals for sampling suspect materials. Resolve the assessment and handling scope before demolition; requirements for removal and disposal vary by state/city.

Tie payments and warranties to the siding work

Ask for a written payment schedule tied to identifiable stages such as material delivery, completion of agreed wall preparation, siding installation, and the final walkthrough. State deposit rules vary by state/city; verify local requirements rather than treating a contractor’s requested percentage as a legal standard.

Keep the product warranty, finish warranty, and installer’s workmanship promise separate. Request the actual documents for the selected siding and finish, plus the installer’s written coverage term, exclusions, claim process, and responsibility for labor to remove and reinstall panels. Do not assume a product defect promise covers installation errors.

Before closing out the job, walk every elevation with the contractor. Review unfinished trim, damaged panels, unresolved flashing details, and removed attachments. Collect inspection records where applicable, product labels and color information, warranty documents, and photos of concealed work. Agree on how remaining corrections affect the final payment.

What a complete estimate lists

Measured siding area and affected elevations
List wall coverage, gables, opening deductions, waste, and repair boundaries. This prevents a rear-wall repair from being confused with a whole-house replacement.
Exact siding product and finish
Name manufacturer, product line, material, profile, exposure, color, and finish. For vinyl, specify thickness and any insulated backing; for wood products, identify the selected grade or product.
Existing siding removal and disposal
Identify layers being removed, debris hauling, and what stays. Distinguish ordinary demolition from any separately assessed lead or asbestos work.
Sheathing inspection and repair procedure
Define what the crew will inspect after tear-off, how repairs are measured, and when written approval is required. Include photos before damaged areas are covered.
Water-resistive barrier and seam treatment
Specify the barrier product or retained assembly, repairs, laps, tapes, and transitions. New siding alone does not describe the drainage plane behind it.
Window, door, and roof-intersection flashing
Describe head flashing, roof-to-wall transitions, and kickout details where applicable. State whether existing flashing will be exposed, replaced, or left in place.
Fasteners and installation method
Identify substrate attachment and compliance with the selected product’s instructions, including movement allowance or fastening pattern. Exterior insulation can change the required fastening approach.
Trim, corners, starter strips, and transitions
List included trim by location or length, with material and finish. Include transitions between siding styles so decorative selections do not become undefined extras.
Penetrations and attachment blocks
Account for lights, vents, outlets, hose bibs, shutters, and downspouts. Define who disconnects and reconnects services when another trade is needed.
Insulation, furring, or drainage-space work
State whether these layers are included, their specifications, and how added wall thickness affects window trim and fastening. Avoid an unexplained insulation upgrade allowance.
Coating, cut-edge treatment, and sealant
Identify factory versus field finishing and product-required edge treatment. Specify sealant locations rather than promising to seal every joint regardless of drainage needs.
Access, weather protection, and closeout
Include scaffolding or lifts, protection of exposed walls during interruptions, debris cleanup, and final documentation. State whether soffit, fascia, and gutters are included or excluded.

Red flags to look for

Only floor area supports the quantity
The contractor gives an interior house size but no exterior measurements. Ask for wall areas, gables, deductions, and waste before comparing coverage.
New panels with no drainage-layer plan
The proposal promises a fresh exterior but never identifies the barrier or flashing transitions. Ask what happens after removal exposes torn wrap or failed window details.
Caulk presented as the entire leak repair
A roof-wall leak is assigned only a bead of sealant, with no investigation of flashing or drainage. Request the suspected entry point and a repair detail.
Vinyl will be nailed tight or sealed everywhere
This conflicts with movement and drainage principles in the Vinyl Siding Institute manual. Ask the installer to show the selected product’s fastening and caulking instructions.
Matching panels are promised without verification
The quote guarantees an invisible patch without identifying the existing profile or checking availability. Ask to approve a physical sample and a fallback scope if the match fails.
Rot repairs are an open-ended extra
The proposal allows unspecified wall repairs without measurements or approval steps. Require documentation and authorization before added work proceeds.
Old siding is called safe by sight alone
A visual opinion is not an asbestos determination. Ask how suspect materials and older painted layers will be assessed before cutting or removal.
A long warranty has no named coverage
The estimate cites a warranty term without naming the issuer or distinguishing material, finish, and workmanship. Request the documents and clarify responsibility for replacement labor.

Questions to ask before you sign

Which elevations and wall measurements support your siding quantity, and how did you handle openings and waste?
What exact product, profile, exposure, finish, and trim system will you install?
Will you remove every existing layer, and what conditions would make an overlay unsuitable?
How will you connect the water-resistive barrier to window, door, and roof-wall flashing?
What is your plan for kickout flashing and siding clearances at roofs, decks, and grade?
How will you document and obtain approval for sheathing or framing damage after tear-off?
Can I approve a sample before a repair proceeds if the existing siding is faded or discontinued?
Who handles light fixtures, hose bibs, utility attachments, shutters, and downspouts?
How will exposed walls be protected if rain interrupts removal and installation?
Which product-specific installation instructions and warranty documents will you provide at closeout?

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FAQs

How much does siding replacement cost for my house?

Start with measured exterior coverage and a defined wall assembly. Material, height, access, tear-off, trim, flashing, and concealed damage all affect the total. Henry Check places your written estimate next to published, cited price ranges; clarify exclusions before interpreting the comparison.

What should a siding estimate include?

Look for measured coverage, named materials, removal, substrate repairs, the water-resistive barrier, flashing, fasteners, trim, finishing, and cleanup. It should also identify excluded elevations and attachments, the extra-work approval process, and any required permit responsibility.

Can I repair siding instead of replacing the whole exterior?

Ask whether damage is isolated, replacement panels fit the existing profile, and the underlying wall is sound. A localized repair may be a defined option, but recurring leaks or damage across several elevations call for a broader investigation before choosing the scope.

Does siding replacement include new housewrap?

Not unless the proposal says so. Ask whether the existing barrier will remain, be repaired, or be replaced, and how transitions will be restored. The Department of Energy describes the drainage plane as a continuous water-management layer behind the exterior cladding.

Should soffit, fascia, and gutters be included?

They are separate scope decisions. Ask each contractor to label them included, excluded, or optional, with removal and reinstallation responsibilities. Matching siding bids requires the same choices, especially where new wall thickness changes the trim relationship.

Do I need a permit to replace siding?

Rules vary by state/city and by the work involved. Ask your local building department about your exact scope, including changes to sheathing or wall assemblies. Put permit and inspection responsibilities in writing rather than relying on a verbal assurance.

Does a siding warranty cover installation mistakes?

Do not assume it does. Read the selected product’s warranty and request a separate written workmanship commitment from the installer. Clarify exclusions, claim procedures, and whether labor, removal, disposal, and reinstallation are covered under each document.

Sources

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