The first question most Boston-area homeowners ask is the same everywhere: how much does it cost to install tankless water heater systems in a typical residence? Because CountBricks generates thousands of AI-powered estimates every month, we have the data to answer with confidence—while also showing you how to control the budget.
Across the projects processed through CountBricks.com/services, total installed costs land between $3,200 and $5,800 for a standard natural-gas unit that serves a three-bath home. Electric models run lower, while high-capacity condensing gas units can push above $6,500. Geography, fuel source, and family hot-water demand all shift the needle, so let’s unpack the individual pieces.
• Mid-efficiency gas tankless heater: $1,000 – $1,400
• High-efficiency condensing model: $1,400 – $2,000
• Whole-house electric unit: $600 – $900
Because CountBricks connects directly to live supplier APIs, the dollar figures inside your voice-driven estimate update the moment material prices change.
Expect $1,400 – $2,400 in labor for a straight swap from a tank to a wall-hung unit. That covers:
• Licensed plumber and apprentice hours
• Gas fitter or electrician tie-ins
• Wall bracket installation and venting assembly
On complex retrofits—think relocation across the basement or new chase construction—labor can add $500 – $1,000. The CountBricks task library already includes these line items, so nothing gets missed in your proposal.
• Concentric stainless vent kit: $250 – $400
• Gas line upsizing (¾ in. to 1 in.): $300 – $600
• 60-amp breaker and #6 wiring (electric units): $350 – $700
Because our AI takeoff scans your PDF or DWG blueprints in seconds, CountBricks flags every run length, elbow, and penetration so you can order exactly what you need—no overbuy, no surprise shortages.
Most New England municipalities require plumbing and gas permits that total $100 – $250. CountBricks auto-loads the latest city fee schedule into your estimate based on ZIP code.
• Scale-inhibiting filter cartridge: $120 – $180
• Remote recirculation pump for instant hot water: $250 – $450
• Annual service plan from CountBricks partners: $180 – $300 per year
Yes, the upfront cost to install tankless water heater equipment can be higher than a storage tank. But homeowners recoup savings through:
• 20+ year lifespan versus 8-12 for tanks
• 15%–40% fuel savings confirmed in CountBricks post-project audits
• Freed-up floor space that adds resale appeal
1. Initiate a voice call from any jobsite—our AI captures your conversation.
2. Upload photos or blueprints; CountBricks completes dimensional takeoff automatically.
3. Review the pre-built cost breakdown, tweak margins or crew rates, and hit “Generate Quote.”
4. A branded PDF with scope, tasks, and contract terms is ready to email within minutes.
• Size for simultaneous fixtures, not square footage. Our load-calc tool factors GPM demand.
• Vent through an exterior wall when possible—vertical roof stacks raise scaffold costs.
• Schedule utility inspections early; peak heating season can double wait times.
• Always flush lines before final connection—sediment voids manufacturer warranties.
• Hidden galvanized piping needs replacement—run a quick borescope check and allow a contingency.
• Insufficient combustion air in tight homes—plan for a fresh-air intake sleeve.
• Electrical panel maxed out—CountBricks will flag ampacity issues, but coordinate with a licensed electrician before demo begins.
So, how much does it cost to install tankless water heater systems? With CountBricks, you move from ballpark to bulletproof numbers in under ten minutes. Our AI synchronizes material pricing, labor productivity, and permit fees so your quote reflects today’s reality—not last quarter’s spreadsheet.
Ready to see your exact number? Start a free trial at CountBricks.com/consultation and let our platform build your next winning proposal.
A recent three-bath colonial in Brookline needed a 199 k BTU condensing unit to keep pace with a growing family. The contractor used CountBricks voice estimating right from the basement:
• 12 minutes to describe scope, fuel source, and vent route
• AI takeoff measured 38 ft of 2-in. PVC vent and 26 ft of 1-in. gas line directly from the uploaded floor plan
• Real-time pricing locked materials at $2,165—before an overnight supplier increase hit
Because every task (demo, wall bracket, flush kit, condensate neutralizer) was preloaded, the crew foreman printed a labor checklist straight from the CountBricks dashboard. Result: installation wrapped in 6.5 hours instead of the usual 8, saving the homeowner $540 in labor and trimming one day off the project timeline.
• Dynamic Assemblies: Change from concentric to twin-pipe venting and CountBricks instantly swaps fittings, clamps, and labor minutes.
• Permit Autopopulation: Enter ZIP code; plumbing and gas fees appear in the quote so you never eat a cost you forgot to include.
• Voice-to-Invoice: After final inspection, a single voice command converts the estimate into an invoice, complete with stored client e-signature.
Whether you retrofit a studio condo or design a multi-unit townhouse, CountBricks answers the core question—how much does it cost to install tankless water heater—with data you can trust. Explore our portfolio at CountBricks.com/portfolio or book a live demo today.
