Tankless Water Heater Installation Costs for Professionals

Understanding Tankless Water Heater Installation Costs

For construction professionals in the Boston area, understanding the cost to install tankless water heater systems is crucial. Typically, installation costs range from $3,200 to $5,800 for a standard natural-gas unit in a three-bath home. Electric models may cost less, while high-capacity units can exceed $6,500. Factors such as geography, fuel source, and hot-water demand influence these costs.

Detailed Cost Breakdown

1. Equipment Cost

Mid-efficiency gas tankless heater: $1,000 – $1,400
High-efficiency condensing model: $1,400 – $2,000
Whole-house electric unit: $600 – $900

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2. Labor & Trade Coordination

Labor costs for a straightforward installation range from $1,400 to $2,400, covering:

Licensed plumber and apprentice hours
Gas fitter or electrician tie-ins
Wall bracket installation and venting assembly

Complex retrofits may add $500 – $1,000.

3. Venting, Gas Line, and Electrical Upgrades

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

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4. Permits and Inspection Fees

Plumbing and gas permits typically cost $100 – $250. CountBricks auto-loads the latest fee schedules based on ZIP code.

5. Optional Add-Ons

Scale-inhibiting filter cartridge: $120 – $180
Remote recirculation pump: $250 – $450
Annual service plan: $180 – $300 per year

Long-Term Savings with Tankless Systems

While initial costs are higher, tankless systems offer long-term savings through:

20+ year lifespan versus 8-12 for tanks
15%-40% fuel savings
Increased resale appeal due to freed-up space

Using CountBricks for Accurate Estimates

1. Initiate a voice call from any jobsite.

2. Upload photos or blueprints for automatic takeoff.

3. Review and adjust the cost breakdown.

4. Generate a branded PDF quote.

Pro Tips for Installation

Size for simultaneous fixtures, not square footage.
Vent through an exterior wall to reduce costs.
Schedule inspections early to avoid delays.
Flush lines before final connection to maintain warranties.

Avoiding Common Budget Busters

Check for hidden galvanized piping and plan contingencies.
Ensure sufficient combustion air in tight homes.
Coordinate with electricians to avoid ampacity issues.

Conclusion

With CountBricks, you can move from estimates to precise numbers quickly. Our platform synchronizes material pricing, labor productivity, and permit fees to provide accurate quotes. Start a free trial at CountBricks.com.