Serving Keene, NH and surrounding areas
Approved
Super Service Award Winner
In business since 2008
Free estimates
Credit card accepted
"Very responsive and fair. I would recommend them for any concrete or stone project."





+2

Serving Keene, NH and surrounding areas
Approved
Super Service Award Winner
In business since 2008
Free estimates
Credit card accepted
"Very responsive and fair. I would recommend them for any concrete or stone project."





+2

Serving Keene, NH and surrounding areas
Approved (Corporate)
In business since 1996
Free estimates
Warranties offered
"Just finished a visit with Foreman Doug and his crew, Devin, Sean, and Mason. Waterproofing the basement and super sound and solid work! Doug was professional and very good at keeping me in the loop with the project over the 3 day visit, and created a solid system that we are confident will keep water out of the basement forever. Above and beyond as well with problem solving when having to find solutions to fit our basement layout, all with a solid financing option/great price and 5 year warranty/ yearly inspection plan. If you are stuck with water in your basement, get Groundworks working for you ASAP!"





+16

Serving Keene, NH and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Emergency services offered
"This experience was excellent from start to finish. Al was very helpful, kind, professional and friendly. The price was fair and the work quality was outstanding. The crown on our chimney looks great and will protect our property for years to come. We would definitely use Expert Chimney again."





+36

Serving Keene, NH and surrounding areas
Approved
In business since 1987
Free estimates
Small jobs welcome
"Everything was done perfect since the first time."

Serving Keene, NH and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Emergency services offered
"They did a great job on my steps would highly recommend these guys"





+6

Serving Keene, NH and surrounding areas
Approved
In business since 2024
Free estimates
Warranties offered
"Matt is very responsive and skilled. He makes sure that the final job meets expectations. He worked hard off hours to get the job done on time, and I greatly respect that. Thanks, Matt!"

Serving Keene, NH and surrounding areas
Approved
Free estimates
Credit card accepted
Offers commercial services
"Ryan owner of Granite State Concrete, He had come and gave an estimate on time which seemed very fair. I wanted a 3ft long by 16 ft. wide cement Apron for in front of my garage. As it turned out his uncle actually did the work. I thought his uncle did a nice job he worked late till dark to finish. he was supposed to come back and smooth out the apron, but he never did. He found out that Ryans estimate was 4 cement bags short. He had a worker go get them at Home Depot. He then finished the apron. They were supposed to come back, and power wash my driveway because some cement had got on it. I called Ryan many times he said he himself would come and power wash which never happened. Ryan did come late that night to receive my check. My fault is I should have held back part of the money, my own fault I knew better. Unfortunately, my picture wouldn't upload."

Serving Keene, NH and surrounding areas
Approved
Free estimates
Credit card accepted
Offers commercial services
"Great hard working young man that does excellent work. Came out great very happy with final product!"



Serving Keene, NH and surrounding areas
Approved
In business since 2013
Free estimates
Credit card accepted
"I recently had my shingle roof replaced and I?m very happy with the results. The team was professional, punctual, and completed the job efficiently. The quality of the work is excellent, and the new roof looks great. They kept the work area clean and communicated well throughout the process. I would definitely recommend them to anyone needing a roof replacement."
Serving Keene, NH and surrounding areas
Approved
Hansen Contracting has more than 25 years of experience for all of your contracting needs. We specialize in new residential construction as well as general home remodeling.
Figuring out how many bars you need isn’t a one-size-fits-all equation. A structural engineer or experienced concrete contractor will look at your slab’s thickness, the loads it must carry, and local code requirements, then run the numbers for you. That quick consultation protects your budget and keeps the finished slab safe, level, and up to code.
Match the metal to the job. For light, thin pours like a sidewalk, welded wire mesh often does the trick. Thicker slabs—driveways, garage floors, foundations—usually call for traditional steel bars. If your site sees salt, humidity, or coastal spray, spend the extra cash on galvanized or stainless steel to fend off rust and avoid future repairs. When in doubt, a concrete pro can confirm the best fit for your project and budget.
Stainless steel costs more up front, but the alloy can last 75 years or longer with little to no rust. That longevity means fewer repairs, less maintenance, and peace of mind for structures exposed to salt, moisture, or de-icing chemicals. If you’re pouring near the coast or in a humid climate, the extra dollars now can save you multiple replacements down the road.
An engineer will review the slab’s thickness, span, soil conditions, and expected loads, then specify bar size, spacing, and grade. Skipping that step or guessing can leave you with cracked concrete or a blown budget. For a modest consultation fee, a local engineer or contractor can do the math and hand you a rebar schedule that meets code and keeps your project on solid footing.
From average costs to expert advice, get all the answers you need to get your job done.

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