A home addition is one of the most visible structural changes you'll make—and it all starts with framing. Choosing the right framing contractor determines whether your addition sits square, stays plumb, and avoids expensive problems down the road. Here's what you need to know before you hire.
Why Framing Matters for Your Addition
Framing is the skeleton of your new space. It sets the geometry for everything that comes after: drywall, windows, doors, roofing, and utilities. A sloppy framing job won't just look bad during construction—it creates compounding errors that affect insulation, air-sealing, and structural integrity for decades. Most homeowners don't see the framing once the walls are closed, but it's where quality really lives.
What Framing Contractors Actually Do
A framing contractor handles the wood (or metal) structure of your addition. Their responsibilities include:
- Building exterior walls and interior partition walls to code
- Framing the roof or second-story structure
- Installing headers and support beams for load-bearing walls
- Ensuring correct spacing for future electrical, plumbing, and HVAC work
- Meeting local building codes and passing framing inspections
They work closely with your architect, general contractor, or builder. If you're managing the project yourself, the framing contractor becomes one of your most critical hiring decisions.
Understanding Timeline and Scope
A typical single-story addition framing takes 2–4 weeks, depending on square footage and complexity. A second-story or addition with vaulted ceilings might stretch 4–6 weeks. This doesn't include pre-framing delays (lumber delivery, permit approval) or post-framing inspections, which can add another 1–2 weeks to your overall schedule.
Get a clear scope of work in the contract. Specify whether the contractor supplies all lumber and materials, or if you're providing them. Clarify what happens if existing structure modifications are needed—these change the budget and timeline significantly.
Cost Ranges and What Affects Price
Framing labor typically costs $8–$15 per square foot for addition work, though this varies by region, wood prices, and complexity. For a 400-square-foot addition, expect $3,200–$6,000 just for labor. Materials (lumber, fasteners, hardware) often run an additional $5–$10 per square foot.
Factors that push costs higher:
- Vaulted or cathedral ceilings
- Complex roof lines or dormers
- Modifications to existing walls (required connections)
- Structural engineer requirements
- Tight site access or difficult terrain
- Rush timelines
Get three written estimates that break down labor and materials separately. Low bids aren't always red flags, but unusually cheap estimates often indicate the contractor is cutting corners or underestimating the work.
Finding and Vetting Contractors
Start by checking credentials. All framing contractors should have:
- Active contractor license (check your state's licensing board)
- Workers' compensation insurance and general liability insurance
- References from at least two completed additions in the past 2 years
Ask for a site visit to a current or recent project. Look for straight lines, consistent spacing, clean cuts, and organized work areas. Don't just talk to the contractor—watch them work or talk to the homeowner about their experience.
If you're comparing multiple providers, Mercoly lets you evaluate trusted framing contractors side by side, making it easier to assess experience, pricing, and availability in your area.
The Contract and Inspection
Never hire without a written agreement that includes:
- Exact scope of work and materials list
- Start and completion dates
- Total price and payment schedule
- What's covered if building inspector flags issues
- How change orders are handled
Schedule a framing inspection before the contractor begins drywall. Most municipalities require it by code anyway. This is your moment to catch problems while they're still easy (and cheap) to fix.
Red Flags to Watch
Avoid contractors who pressure you to pay in full upfront, can't provide recent references, or avoid putting timelines in writing. If they're vague about how they'll handle code compliance or structural connections, that's a sign they cut corners elsewhere.
Frequently Asked Questions
Q: Can a framing contractor also handle the roof structure, or do I need a roofer? A: Most framing contractors do the structural framing for roofs, but they typically don't install shingles or roofing materials—that's a separate roofing trade. Clarify this before hiring.
Q: What if the building inspector rejects the framing? A: The framing contractor should be responsible for corrections at no additional cost, though your contract should spell out exactly who pays for fixes caused by code violations versus structural surprises.
Q: How far in advance should I book a framing contractor? A: Aim for 4–8 weeks minimum, especially during spring and summer. During busy seasons, slots fill fast, so don't wait until you're ready to start digging.
Start your search today by comparing local framing contractors and reading verified reviews from homeowners who've completed additions.