Attic insulation in New Jersey

Herts Roofing & Construction adds attic insulation and air sealing to make homes more comfortable and cut energy bills. Because we are roofers, we look at insulation and ventilation together, which is also how you stop ice dams and hot upstairs rooms.

4.9★126 Google reviews
FreeAttic check
Roof + atticDone together
15 yrWorkmanship warranty

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Signs your home needs more insulation

Upstairs rooms that are hot in summer and cold in winter, ice dams and icicles, high heating bills, drafts, and attic insulation you can see the joists through all mean heat is escaping through the attic.

What we do

Blown-in attic insulationAir sealingAttic bafflesKnee-wall insulationVentilation upgrades
  1. Check the atticWe look at how much insulation is there, where air is leaking and whether the attic is vented properly.
  2. Seal the leaks firstWe seal gaps around lights, pipes and top plates so warm air stops escaping into the attic.
  3. Insulate and keep it ventedWe add insulation to the right depth and install baffles so the soffit vents stay open.
Before you hire

Why ventilation matters too

Insulation keeps heat in the house; ventilation keeps the attic cold and dry. You need both. Adding insulation without baffles can block your soffit vents and make ice dams and moisture worse.

That is why we check the roof, ventilation and insulation together, especially on Cape Cods and older homes with finished upstairs rooms.

How Herts handles insulation

Insulation is a natural add-on when we are already replacing a roof, because we can fix ventilation at the same time. Book a free inspection.

Recent projects by Herts Roofing & Construction

Our latest finished jobs, straight from the crew.

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What customers say

“Jimmy was our rep and I couldn't speak more highly of Jimmy and the Herts team. Customer service was a 10/10 as well as the job.”

Jake L. · Google review

“My roof looks great. It was hard to find a good reputable company. Your process was seamless and to the point.”

Angelica J. · Google review

“Punctual, professional, and communicated clearly throughout the process.”

Jaden · Google review

Insulation questions

Will more insulation stop ice dams?

It helps, but ice dams are usually a mix of heat loss, poor ventilation and missing ice and water barrier. We look at all three.

Can you add insulation when you replace my roof?

Yes. It is a good time to do it, because we can fix the ventilation at the same time.

Are your estimates free?

Yes. We come out, look at the job, take photos and give you a written price. There is no charge and no pressure.

Do you offer financing?

Yes. Financing is available on larger projects. Ask about it at your estimate and we will send you the options.

Towns we serve

We work across Union County and North and Central Jersey, plus the Lehigh Valley in Pennsylvania.

Is your attic costing you money?

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