How do you assess a homeowner's failed DIY renovation?
Short answer. Judge it against code before quoting. Undersized framing, unlicensed electrical, wrongly sloped drains, and missing moisture barriers cannot be built over; that work must be demolished and redone, or you inherit the violations.
Work it through
You're the contractor. Pick what you'd do, then see how each choice plays out.
Carl Brennan
Retired engineer who started a renovation himself, made it worse, and is now calling you to fix it
Carl Brennan calls you to his house. He started a basement renovation himself 6 months ago. What you find:
- Framing built with 2x3s instead of 2x4s - Electrical wired by Carl himself (no license, no permit) - A bathroom drain that runs uphill - Drywall screwed directly to foundation walls with no moisture barrier - No vapor barrier anywhere
"I just need you to finish what I started. How much?"
- Correct
This is a code nightmare. 2x3 framing doesn't meet IRC minimums for load-bearing or even partition walls in most applications. Unlicensed, unpermitted electrical is a fire hazard. A drain running uphill means sewage backup. Drywall on foundation without moisture barrier guarantees mold within a year. You CANNOT build on top of this work — it must be demolished and redone properly. Carl won't like the price, but the alternative is putting your license on code violations someone else created.
- Wrong
The moment you pull a permit and an inspector sees 2x3 framing, unpermitted electrical, and no moisture barrier, the inspection fails and YOU get cited. You can't 'fix the obvious problems' when the foundation of the work is non-compliant. Building code-compliant finish on top of non-compliant rough-in is like painting a car with a cracked engine block. It looks fixed until it isn't.
All 26 permits, inspections & building codes questions
- Who is responsible for permits on a Maryland home improvement job?
- Can you skip permits if the homeowner asks you to?
- How do you build permit costs into a contract?
- Which home projects need a permit in Maryland?
- Do cosmetic bathroom refreshes in rentals need permits?
- What happens when an inspector finds work without a permit?
- What is your liability when unpermitted work fails?
- How should you handle a problem the inspector finds?
- Why do building inspections happen in stages?
- How do you get a building permit approved faster?
- Where is fire blocking required under IRC R302.11?
- When does a basement bedroom need an egress window?
- Where are smoke alarms required after a renovation?
- Can a homeowner refuse GFCI outlets in the kitchen?
- When does a deck stairway need a handrail?
- Does a bathroom need an exhaust fan under the IRC?
- How must a deck ledger be attached to the house?
- How is energy code compliance checked on an addition?
- Does the ADA apply to a single-family bathroom remodel?
- When does a retaining wall need an engineered design?
- What is required before removing a load-bearing wall?
- Can you build a deck over a utility easement?
- When does a patio trigger stormwater management in Maryland?
- Does a building permit override HOA approval?
- How do you take over a job another contractor abandoned?
- How do you assess a homeowner's failed DIY renovation?