CSIA-certified technicians, same-day availability, flat-rate pricing. Trusted by thousands of Portsmouth homeowners.
Built one Portsmouth home at a time — honest pricing, expert techs, guaranteed results.
Gold standard certification — all our Portsmouth techs hold current CSIA credentials.
Locally based — faster response, local knowledge, community reputation.
Flat-rate quote before we start. No upsells, no surprises in Portsmouth, NH.
Frequently available same-day throughout Portsmouth and surrounding areas.
$2M liability on every job. Your Portsmouth home is protected from arrival.
100% satisfaction or we come back and make it right. No questions asked.
Full creosote removal, debris clearing & safety inspection.
Level 1, 2 & 3 inspections. Video scanning available.
Cracked firebox, damaged mortar, broken damper — fixed.
Custom-fit stainless steel cap — protection from rain & pests.
Stop moisture damage before it ruins your masonry.
Clogged vent = fire hazard. We clear & inspect completely.
Simple, fast, professional. Most Portsmouth jobs done in 60–90 minutes.
Call (833) 339-6803 — slot confirmed in under 2 minutes.
Flat-rate price before any work. No pressure, no surprises.
Fully equipped truck, drop cloths, zero mess left in Portsmouth.
Written inspection report. We flag everything — no fluff.
No hidden fees. No upsells. What you see is what you pay in Portsmouth, NH.
"Finally found a chimney company that doesn't upsell a $3,000 job on a chimney that just needed a sweep."
"Swept and inspected before Thanksgiving. Found a cracked flue tile, fixed it on the spot."
"On time, fast, cleaned up completely. Price matched the quote exactly."
Locally based — fast response throughout Portsmouth and surrounding communities.
If you’re a Portsmouth homeowner researching Chimney Cap Installation, you’re already ahead of the curve. Most families in New Hampshire don’t think about their chimney flue until symptoms appear — unexplained allergies, rising energy bills, musty odors, or visible dust around vents. D&D Chimney Cleaning helps Portsmouth families get proactive rather than reactive, with professional Chimney Cap Installation that prevents problems before they affect your health or wallet.
Open one of your vent registers and look inside. That dark coating is years of accumulated dust, dead skin cells, pet dander, pollen, mold spores, and worse. Now multiply that by every linear foot of chimney flue — typically 100-300 feet for an average Portsmouth residence. Your HVAC pushes air through all of it every single day. In New Hampshire’s variable northeastern conditions where heavy heating seasons and moisture is ongoing, this buildup is more aggressive than in milder climates.
New Hampshire’s variable northeastern climate creates distinct seasonal duct challenges for Portsmouth homeowners. During freezing season, when cold, snowy winters drive constant HVAC operation, contamination circulates at peak rates. Transition seasons bring pollen surges. Winter heating can bake accumulated dust into hard-to-remove deposits. Summer cooling creates condensation that feeds biological growth. Every season adds another layer — which is why Portsmouth homes benefit from professional Chimney Cap Installation at least every 3-5 years.
According to NADCA, the average six-room home generates 40 pounds of dust per year. The EPA estimates Americans spend 90% of their time indoors. For Portsmouth families, that means breathing recirculated air that passes through contaminated ducts thousands of times. In New Hampshire’s variable northeastern climate, moisture and temperature conditions accelerate contaminant buildup significantly compared to other regions.
Many Portsmouth homeowners combine Chimney Cap Installation with complementary services for maximum impact: HVAC tune-up, dryer vent cleaning, UV light installation, or whole-home air purification. D&D Chimney Cleaning offers package pricing for New Hampshire homeowners who want comprehensive chimney safety and efficiency. Ask about current multi-service discounts when you call — the savings make it easy to address everything at once.
D&D Chimney Cleaning maintains dedicated crews serving Portsmouth and surrounding areas. Morning, afternoon, or weekend — we work around your schedule. Stop breathing contaminated air and start experiencing the difference clean ducts make: (833) 339-6803.
Same-day availability. CSIA-certified technicians. Flat-rate pricing. No surprises.
(833) 339-6803 Available 7 days a week · Same-day slots available 📞 Call Now — Free QuoteFast response · No obligation · CSIA Certified