Rust Stain Removal in Denver & the Colorado Front Range
Starting at $85 · Licensed & Insured · 5-Star Rated
Rust stains ruin the look of concrete, brick, and siding — and you can't just pressure wash them off. Plain water spreads rust deeper into porous surfaces. Removing rust requires specific chemistry (oxalic acid or similar) that dissolves iron oxide without harming the surface underneath. We do it right.
Where rust stains come from on Front Range properties
- Irrigation systems — well water and some municipal water carries iron that sprinklers spray onto concrete, siding, and stone
- Fertilizer — many lawn fertilizers contain iron sulfate (greens up turf), which stains concrete when spilled
- Metal patio furniture — steel chair legs on damp concrete leave round rust rings
- Rebar bleed-out — old concrete with exposed or near-surface rebar leaks rust stains from within
- Nails and screws — a rusted nail against siding or wood leaves a descending streak
- Well water — properties on wells with high iron content often have rust staining on any surface the water hits
Our process
- Identify rust source (critical — if source isn't fixed, stain returns)
- Test small area with rust remover
- Apply oxalic acid-based rust remover to affected areas
- Dwell time 5-15 minutes depending on severity
- Agitate stubborn areas
- Neutralize with appropriate base solution
- Rinse thoroughly
- Re-treat if needed
What to fix before we come
If your rust source isn't fixed, the stain comes back within months. Before or right after we clean: reroute sprinklers so they don't hit concrete/siding, replace any rusted nails/screws/metal trim, move metal furniture off concrete or add rubber feet. If rebar is bleeding through old concrete, that's a repair job — we'll note it.
Typical pricing
Small localized rust stains: $85-$175. Driveway with multiple rust streaks from sprinklers: $200-$400. Large rust-stained areas on commercial concrete: custom quote. Add-on to house wash or driveway cleaning: $50-$100 depending on severity.
Frequently Asked Questions
Can all rust stains be removed?
Surface rust on good concrete: almost always. Rust that's etched into old porous brick or concrete: often partial improvement, sometimes permanent. We test first and tell you what's realistic.
Will the remover hurt my plants?
Oxalic acid is harsh while concentrated. We pre-wet landscaping and neutralize runoff. On properly prepared sites, we've never damaged plantings.
What if the rust comes back?
If the source isn't fixed, it'll return. We'll identify the source and recommend how to prevent it. If source was fixed but rust returns within 90 days, we re-treat at no charge.
What about efflorescence (white stain on brick)?
Different problem, different treatment. That's mineral bloom from water migrating through masonry. We handle that too but it's a separate treatment.
Ready for Your Free Quote?
Tell us about your project and we'll get back within 24 hours with an honest, transparent estimate — no sales pressure, no hidden fees.
- ✓ Free, no-obligation estimate
- ✓ Licensed & insured, $1M general liability
- ✓ 5-star rated across the Front Range
- ✓ Satisfaction guaranteed
Prefer to call?
(720) 988-4540