Eight things, one crew
Everything that touches your energy bill, under one contract
We do the envelope, the mechanicals, the electrical and the array. That is deliberate: it is the only way the numbers on a proposal can be trusted, because nobody gets to blame the other trade.
Superior, 8.7 kW DC on a reroofIn the order we would usually do them
Start at the top of this list, not the bottom
Sealing an attic is cheaper per kWh saved than generating one. We put the list in the order that saves the most money, which is rarely the order people arrive asking for.
- 01
Rooftop solar for Boulder County homesArrays between 5 and 12 kW DC, sized from twelve months of your own kWh rather than from your roof area.5.0 to 11.5 kW DC1,480 kWh per kW DC per year - 02
Home battery storageUsable kWh for outages and for shifting load out of the 3 to 7 pm peak, wired to a protected loads panel you actually chose.13.5 kWh5.0 kW per module - 03
Whole-home energy auditBlower door, thermal scan, combustion safety and a room-by-room Manual J load, in one visit, with the numbers written down.$395 for homes to 2,500 sq ft3 to 4 hours - 04
Insulation and air sealingSeal first, then insulate. Attic to R-60, rim joists closed, and the ACH50 re-tested so you can see it moved.$2,800 to $5,400$3.10 to $4.60 per sq ft of wall - 05
Cold-climate heat pumpsSized from a real Manual J and specified at 5 degrees F, not at the 47 degree rating on the brochure.$14,500 to $24,000 installed$9,800 to $19,500 installed - 06
EV charger installationLevel 2 at 48 A continuous means 11.5 kW and a 60 A circuit. We do the load calculation before we quote the conduit.7.7 kW at 32 A, 9.6 kW at 40 A, 11.5 kW at 48 A40 A, 50 A or 60 A - 07
Solar-ready roofingReroof and array in one mobilisation, so you never pay to remove a five-year-old system to replace shingles under it.$6.40 to $9.20 per sq ft$14.00 to $21.00 per sq ft - 08
Monitoring and maintenanceModule-level production watched against the model, so a 9 percent shortfall gets a phone call rather than a shrug.$196 per year for systems to 10 kW DC8 percent over two consecutive months
The list nobody in the industry likes publishing
Eight measures ranked by what they actually pay back
Sample costs and savings for a typical pre-1990 Boulder County home of 1,600 to 2,200 square feet. Your report gives you your own version of this table.
| Measure | Typical cost | Typical saving | Simple payback | Notes |
|---|---|---|---|---|
| Attic air sealing | $1,400 to $2,600 | 8 to 14 percent of heating | 3 to 5 years | Always first. Sealing under existing insulation is the single highest-return hour in the house. |
| Attic insulation to R-60 | $1,400 to $2,800 | 6 to 11 percent of heating | 5 to 8 years | Code prescription for zone 5B is R-49. The last 11 is cheap once the crew is up there. |
| Rim joist closed-cell foam | $950 to $1,700 | 3 to 6 percent of heating | 6 to 9 years | Small area, disproportionate leakage. Also fixes cold floors above unconditioned basements. |
| Dense-pack wall cavities | $3.10 to $4.60 per sq ft | 9 to 16 percent of heating | 8 to 14 years | Only worth it where cavities are empty or badly settled. We borescope before quoting. |
| Crawl space encapsulation | $4,200 to $8,900 | 5 to 10 percent of heating | 9 to 15 years | Brings the crawl inside the thermal boundary. Also a radon and moisture measure. |
| Heat pump water heater | $2,400 to $3,900 | 1,800 to 2,900 kWh equivalent a year | 4 to 7 years | Needs 700 cubic feet of air around it or ducting. Cools the space it sits in, which is a bonus in a summer basement. |
| Cold-climate heat pump | $14,500 to $24,000 | Replaces 400 to 900 therms with 3,200 to 6,400 kWh | Depends entirely on rates | The measure that makes your array worth more, because heating moves onto the meter your roof feeds. |
| Rooftop solar | $2.75 to $3.40 per watt DC | 1,480 kWh per installed kW DC per year | 9 to 13 years | Last, not first. Generate what a tight house needs, not what a leaky one wastes. |
Start with the test, not the quote
Three to four hours on site, a written report in five business days, and a recommendation that might well be to spend less than you planned.