Hardwood Floor Refinishing · Portland, OR
Beautiful wood floors, restored for life.
GrainLine Floor Refinishing sands, stains, repairs, and installs hardwood floors with dustless equipment, hand-finished detail, and a 3-year workmanship warranty — for homes and businesses across the Pacific Northwest.
18+
years of craftsmanship
- Years in business
- 18+
- Projects completed
- 2,400+
- Sq ft refinished
- 1.2M
- Average rating
- 4.9★
Why GrainLine
Craftsmanship you can feel underfoot
We treat every floor like our own — with obsessive prep, premium materials, and a finish that lasts.
Dustless sanding
Tied-in dust containment captures 99%+ of airborne particles, so you can stay in your home while we work.
3-year warranty
Every refinish and install is backed by our written workmanship warranty.
Low-VOC finishes
Water-based and hardwax finishes that are safer for kids, pets, and indoor air quality.
Certified craftsmen
NWFA-certified technicians with 18+ years of hands-on wood floor experience.
On-schedule, on-budget
Clear timelines and itemized quotes — no surprises, ever.
Free estimates
In-home measurements and a detailed quote within 24 hours.
What we do
Our services
From a single damaged board to a whole-house refinish, we have the expertise — and the equipment — to do it right.
Kind words
What our clients say
Good to know
Frequently asked questions
Ready when you are
Get your free, no-obligation estimate
Tell us about your floors and we will measure, assess, and deliver a detailed itemized quote within 24 hours. No pressure, no hidden fees — just honest numbers from a crew that cares.
