Key Takeaways
- Material price volatility is a permanent feature of the business, and the strongest protection is a better contract, not a better forecast
- Three clauses do most of the work: an excused-delay (force majeure) provision, a flexible pricing term and a clear substitution change-order process
- Strong contract terms only work when backed by accurate cost data and a reliable supply partner
For the past several years, contractors have learned the same lesson over and over: material costs move fast and often without warning. Tariffs, freight costs and a tight labor market have made price volatility a permanent feature of the business rather than a temporary disruption.
You can’t forecast your way out of that. What you can control is how your contracts allocate the risk. A few targeted terms protect your margin when prices spike, keep you out of breach when deliveries slip and set customer expectations before the job starts instead of after the invoice lands. For contractors especially, walking a homeowner through these terms at signing is the single best defense against the “but you quoted me X” conversation later.
Three contract changes worth reviewing with your attorney
1. Protect your contracting schedule with an excused-delay clause
On construction projects, time is money, and missing a schedule, even through no fault of your own, can put you in breach of contract. Some states even impose enhanced damages on contractors who miss or fail to document the schedule.
A force majeure clause excuses delays caused by events outside your reasonable control. In plain terms, it should cover acts of God and natural disasters; government actions or changes in law; strikes and labor disturbances; and delays in getting materials or services from suppliers and subcontractors. Add a catch-all for “any other circumstances beyond the contractor’s control” and a companion term addressing delays caused by the owner, and you’ve covered the realistic ways a 2026 project slips.
The goal is a documented, agreed-upon answer to “what happens when the materials are late.”
2. Build in flexible pricing for homeowners
A fixed “lump sum” price locks in a number you quoted before costs moved. When prices climb between bid and build, that gap comes out of your margin.
Two ways to share that risk fairly:
- Cost-plus with a not-to-exceed cap. You pass through actual material costs and earn a fee on the total, with a ceiling that protects the owner. The cap can adjust if you can document that material costs exceeded what was anticipated in the contract.
- A price-escalation clause that adjusts the contract price based on documented market fluctuations. To build goodwill, make it cut both ways: If a material price drops, the customer shares the savings. That single sentence turns a defensive clause into a trust-builder.
3. Have a list of product substitutions in contracts
When a specified product is backordered or has spiked in price, an equivalent option may be available faster or cheaper. Build a substitution path into the contract so you can have that conversation without renegotiating the whole deal.
Document every substitution with a written change order that clearly states the product change and the corresponding price increase or deduction. This keeps the project moving and gives the owner a transparent record, heading off disputes before they start.
Strong contracts need a strong supply partner
These clauses only work if you can back them up with accurate numbers. A price-escalation term is only as good as the cost data behind it, and a substitution clause is only useful if you can actually source an equivalent product quickly.
That’s where your supplier relationship matters. Working with a distributor like ABC Supply — with broad product availability and reliable pricing across roofing, siding, windows and other building materials — gives you the documented data to support escalations and the access to keep a job moving when a spec falls through. The better your records and product access, the easier these contract terms are to enforce.
The bottom line
Volatility isn’t going away, so treat contract planning as a standing business practice, not an emergency response. Reviewing these terms with your attorney is a modest, one-time cost and almost always far less than the margin you’d lose on a single under-protected job. When you’re ready to back those terms with reliable pricing and product access, find your local ABC Supply team.
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