Ductwork Replacement

This proposal covers complete replacement of the residential ductwork at {{client_address}} — approximately {{home_sqft}} sq ft with {{return_count}} and {{supply_count}}.

Removal

• Protect flooring and furniture with drop cloths along work paths

• Remove existing supply plenums, trunks, branches, and return lines

• Haul-off and dispose of old ductwork

New duct install

• Install {{duct_spec}}

• Seal all joints with Mastic UL 181-approved sealant (no duct tape)

• Pressure-test total duct leakage to ≤ 4 CFM25 per 100 sq ft conditioned area (2018 IECC standard)

• Insulate supply trunks to R-8; return trunks to R-6

• New boots at each register with sealed gaskets

• New filter grille (if applicable) at return

Balancing

• Airflow-test each register with anemometer

• Adjust dampers to achieve design CFM per room per Manual D targets

• Document airflow per register for {{client_name}}'s records

Closeout

• Vacuum debris from registers

• Reinstall existing register covers (or replace with new — itemized if selected)

• Provide before/after static pressure reading

Estimated duration: 2–4 working days depending on attic accessibility and system complexity.

• **Day 1:** Removal of old ducts

• **Days 2–3:** New trunk and branch install, mastic sealing

• **Day 4:** Insulation, pressure test, balancing, walkthrough

Start date: {{start_date}}.

Total contract price: {{total}}

Fixed-price:

• **Deposit: {{deposit}}** — signing

• **Balance: remainder** — at substantial completion and balancing report delivery

Balance due same-day at completion. Balancing report and static pressure measurements delivered with final invoice.

Invoices are due upon receipt. Payments more than ten (10) calendar days past due accrue a service charge of one and one-half percent (1.5%) per month on the unpaid balance, or the maximum rate permitted by law, whichever is less. {{contractor_name}} reserves the right to stop work and preserve lien rights if any progress payment is not received within five (5) business days of the due date. All retained mechanic's lien, stop notice, and bond rights under applicable state law are preserved.

The following items are specifically NOT included in the contract price and are the responsibility of {{client_name}} unless added by written Change Order:

• Permits, plan-review fees, and jurisdictional inspection fees unless explicitly itemized above

• Repair or remediation of pre-existing code violations discovered during the work

• Asbestos, lead paint, mold, or other hazardous material abatement

• Structural engineering, architectural drawings, or third-party design services

• Finish selections, fixtures, or appliances not listed in the itemized scope

• Work on concealed systems (electrical, plumbing, HVAC, framing) beyond the points of connection identified

• Landscaping restoration beyond returning disturbed areas to rough grade

• Post-completion cleaning beyond construction broom-clean

• Drywall repair for register cutouts in new locations (priced per cutout if layout changes)

• Zoning system install (variable-speed zoning priced separately)

• Radiant ceiling or floor-register relocation

• Return drop duct relocation (if moving return to new location)

• Removal of asbestos-containing duct wrap (required in pre-1980 homes; abatement priced separately with certified contractor)

This proposal is based on the following assumptions. If any assumption is incorrect, the contract price and schedule are subject to adjustment by Change Order:

• Site access is available during normal working hours (7am–5pm, Monday–Saturday)

• Adequate parking is available within 100 feet of the work area

• Electrical power and potable water are available on-site at no cost to contractor

• Existing structural elements, waste lines, water supply, and electrical service are in serviceable condition unless noted

• {{client_name}} will remove personal property, artwork, and valuables from the work area prior to start

• Work is based on a single mobilization; re-mobilization required due to delays outside contractor's control will be billed at current rates

• Attic or crawlspace access is available and safe for workers

• Existing system capacity is correctly sized (if replacing ducts exposes undersized equipment, may require Change Order)

• Register and return grille locations remain the same (layout changes priced separately)

Any modification to the scope, specifications, materials, or schedule set forth in this agreement must be authorized in writing as a Change Order signed by both parties before the work is performed. Each Change Order will describe the modified scope, any adjustment to the contract price, and any impact on the schedule. Verbal instructions do not modify this agreement. Additional time and cost associated with unforeseen conditions — including but not limited to concealed rot, asbestos, mold, faulty prior installation, unmarked utilities, or code-required upgrades triggered by the work — will be documented as a Change Order and billed at the rates stated in this proposal or at {{contractor_name}}'s then-current published labor rates, whichever is in effect at the time the condition is discovered.

{{contractor_name}} warrants the workmanship of the installed work for a period of one (1) year from the date of substantial completion. Manufacturer warranties on materials and equipment pass through to {{client_name}} as provided by the manufacturer and are the exclusive source of any material warranty. This warranty does not cover normal wear, abuse, neglect, acts of God, subsequent work performed by others, damage from settlement or movement of the building, or modifications to the installed work performed without written consent. To make a warranty claim, {{client_name}} must notify {{contractor_name}} in writing within thirty (30) days of discovering the alleged defect and allow reasonable access to inspect and repair.

This proposal is valid for 30 days from the proposal date ({{proposal_date}}). Pricing is subject to change after that date due to material market fluctuations and scheduling availability. Acceptance requires signature below and receipt of the deposit amount stated in Payment Terms. Upon acceptance, this proposal, together with any attached specifications and subsequent written Change Orders, constitutes the complete agreement between the parties and supersedes any prior oral or written discussions.

**{{contractor_name}}** — License {{contractor_license}}

By: ________________________ Date: ______________

Print Name: ________________________

**{{client_name}}** — Owner / Authorized Representative

By: ________________________ Date: ______________

Print Name: ________________________

Property Address: {{client_address}}