Additions and Remodels Cost in Mililani, HI in 2026
Most Additions and Remodels projects in Mililani, HI cost between $62,000 and $285,000. The typical price is $135,000.
Labour and materials in Mililani run about 28% above the national average. These figures are adjusted for that, so they are not the national average you will find elsewhere.
What drives the price
- Whether the addition needs its own foundation and roof tie-in
- Adding a bathroom or kitchen (plumbing and electrical runs)
- Structural work to the existing wall being opened up
- Local permit and inspection requirements
Usually included
- Framing, roofing and siding to match
- Electrical rough-in and finish
- Insulation, drywall and paint
- Flooring and trim
Usually extra
- Permits and architectural drawings
- Site work or tree removal
- High-end fixtures and appliances
Unit prices in Mililani, HI
| Quality tier | Cost per sq ft |
|---|---|
| Budget | $155 |
| Mid-range | $335 |
| High-end | $715 |
Home addition and remodeling contractors in Mililani, HI
Businesses listed on Google near Mililani, HI. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
Pivotto's Renovation
5.0(84 reviews)
67-292 Goodale Ave, Waialua, HI 96791
Top Level Construction
4.9(33 reviews)
591 Pepeʻekeo Pl, Honolulu, HI 96825
MNM Remodel Construction
4.9(28 reviews)
91-1561 Wahane St, Kapolei, HI 96707
Top Level Construction
5.0(9 reviews)
94-1388 Moaniani St Ste 216, Waipahu, HI 96797
Wave Builders LLC
5.0(8 reviews)
94-459 A Uke'e St, Waipahu, HI 96797
Dumore Construction & Remodeling
5.0(4 reviews)
95-050 Hokuiwa St Apt 202, Mililani, HI 96789