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A1 Guarantee, LLC logo

A1 Guarantee, LLC

Vinyl Siding Repair or Partially Replace, Seamless Metal Gutters Installation, Asphalt Shingle Roofing Repair,

About us

Gilrose Construction, LLC, is a full service construction company serving Roselle and all of Jersey. We value honesty, integrity and treat your home and business as if it was our own. We are experts in all aspects of roofing projects and customizable to each individual project. We specialize in both installation and replacements. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranty your satisfaction. We focus on attention to detail on every project and superior customer service. Please call us today for a free estimate!

Business highlights

Se habla espanol
Emergency services offered
32 years of experience

Amenities

Emergency Services

Yes

Free Estimates

Yes

Warranties

Yes

Accepted Payment Methods

  • CreditCard
Reviews
4.945 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
96%
4
2%
3
0%
2
2%
1
0%

Filter reviews by service

Showing 1-25 of 45 reviews
Kevin H.
Sep 2023
5.0
Vinyl Siding Repair or Partially Replace
Yes, I recommend this pro
Quick response in an urgent situation, on time, quality work, friendly service. Walter provided and completed the project next day. The job was done well and he was thorough. Highly recommend.

Joseph L.
Aug 2023
4.0
Vinyl Siding Repair or Partially Replace
Yes, I recommend this pro
Prompt, quality and reasonably priced.

YU-TANG C.
Jul 2023
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
$650,000
Perfect

Barbara F.
May 2023
4.5
Vinyl Siding Repair or Partially Replace
Yes, I recommend this pro
Happy with repair and cost

Norma F.
May 2023
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
$1,300,000
Excellent customer service. Mr. Walter is honest and willing to help with cost and provides honest guidance on what is needed. His workers are very professional. Hired them to replace roof. Arrived on time, super efficient, cleaned up everyday. 2 1/2 days..new roof and repaired my chimney.. They are now re-doing my bathroom and next the kitchen. You will not be dissapointed.

Patricia O.
Jun 2022
5.0
Yes, I recommend this pro
Very happy with Gilrose Construction tearing down chimney & building new one. Very prompt, explained everything thoroughly & work done was professional. Would recommend this company & plan to use them in the future for other projects...

Frank P.
May 2022
5.0
Yes, I recommend this pro
Walter promised and delivered.

Ed K.
Apr 2022
5.0
Yes, I recommend this pro
$1,200,000
Responsive to inquiries, prompt, showed up on time. Attention to detail was perfect. Will use again.

Hervey C.
Jan 2022
5.0
Seamless Metal Gutters Installation
Yes, I recommend this pro
$220,000
After getting estimates from other companies I chose Gilrose Construction LLC and am very happy with the work that was done. The workers worked quickly and replaced my gutters while I remained in contact with the owner as he supervised the staff. All debris was cleaned up and taken care of on the same day.

SERGEY K.
Dec 2021
5.0
Seamless Metal Gutters Installation
Quality

Ghenette B.
Oct 2021
4.5
Seamless Metal Gutters Installation
Yes, I recommend this pro
Very professional and the work was good quality and completed fast.

Mark B.
Sep 2021
5.0
Yes, I recommend this pro
Walter and his crew did something that a lot of contractors fail to do these days- he showed up ON TIME, on the date he scheduled me for (and finished on time as well!) and he kept me informed each day about the progress of my job (I was away from home part of the time). His communication during the job was excellent so there were no surprises. As it turned out my roof was in worse shape than I thought (a lot of the roof plywood was rotted and had to be removed and replaced) and Walter and his crew (5 men) worked tirelessly for 3 days getting my roof virtually back to new and also carefully resetting/resealing the many skylights I have on the roofs and lastly installing a completely new custom roof flashing and sealing around the chimney for my fireplace (which hadn't been redone in 35+ years) that failed/leaked terribly this summer from these many tropical storms- especially the deluge of rain from Tropical Storm Ida a couple weeks ago, at which point I was desperate to get this work finally done and Walter came out the next day after I called (on a Saturday) to give me an estimate and then on the following day (a Sunday no less) he came back and tarped the worst part of the roof since more rain was forecasted again in a couple days and he wouldn't be able to start my job until the following week since he was so backed up with work! All in all a great job done and a good experience with Gilrose Construction! Don't expect flashy trucks and fancy uniforms on the workers; what you can expect is an honest "family" company with a hard working crew that listens to your needs (unlike many contractors who are good at saying "NO", Walter usually says "YES" to your specific requests!) and to do a good job for a fair price :-)

Jacqueline S.
Sep 2021
5.0
Yes, I recommend this pro
$150,000
Painless process and great work Great price

Jacqueline S.
Sep 2021
5.0
Seamless Metal Gutters Repair
Yes, I recommend this pro
$159,900
On time and finished quickly. Great customer service felt heard and explaining everything they did. Awesome prices. I will hire them again for my next project.

Reuben D.
Aug 2021
5.0
Asphalt Shingle Roofing Repair
Yes, I recommend this pro
$420,000
After I explained the multi faceted scope of repair work needed (improper roofing/gutter drainage et. al.), Walter devised a plan to not only eliminate the issues, but also identified potential problems elsewhere and offered solutions for me to consider. Then, after the work had begun and other unseen issues became evident, he recommended a plan to resolve those also at a reasonable price. His three-person team was efficient (work completed in approx 8 hrs over two days), orderly (all debris removed), and very competent. He backs his work with a two-year labor warranty. Overall, I feel good about the project's outcome and can't wait for the next downpour to stress-test the new gutters!

Michael P.
Jul 2021
5.0
Seamless Metal Gutters Installation
Yes, I recommend this pro
$135,000
Punctual, kept in constant touch with me Through out the job. Very pleasant to work with and very reasonable. Overall very satisfied, would recommend and use again.

Renee B.
Jun 2021
5.0
Seamless Metal Gutters Installation
Yes, I recommend this pro
$360,000
Walter and his team are knowledgeable, professional, and skillful. They cleaned up after and took excellent care of my lavender plants!! Walter answered ALL of my questions!! I highly recommend this company. Walter went above and beyond to complete the job.

Dan B.
Jun 2021
2.0
Seamless Metal Gutters Installation
N/A

Yves T.
Jun 2021
5.0
Seamless Metal Gutters Installation
Yes, I recommend this pro
$170,000
Very Professional, engaging and prompt. I would recommend them with no problem.

Eric J.
Jun 2020
5.0
Seamless Metal Gutters Installation
Yes, I recommend this pro
We have new gutters and guards, looks great . Our old gutters were really bad . Now our home looks fantastic!! Thank you Walter!

Naomi P.
Jun 2020
5.0
Seamless Metal Gutters Installation
Yes, I recommend this pro
Walter and his staff was very professional, punctual and very neat. He also thoroughly explained the process from beginning to end. Would highly recommend his company.

Donna B.
Jun 2020
5.0
Seamless Metal Gutters Installation
Yes, I recommend this pro
Polite ,reliable ,professional

Tyhesha S.
Jun 2020
5.0
Seamless Metal Gutters Installation
Yes, I recommend this pro
The workers were on time ,work quality neat & professional they also left the place clean after completing the job

Thalia S.
Jun 2020
5.0
Seamless Metal Gutters Installation
Yes, I recommend this pro
Walter was very kind and knowledgeable. They did a wonderful job!

Glenn S.
Jun 2020
5.0
Seamless Metal Gutters Installation
Yes, I recommend this pro
The foreman,Walter and his team were very professional!
Showing 1-25 of 45

Licensing

State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

A1 Guarantee, LLC is currently rated 4.9 overall out of 5.
Monday: Open All Day Tuesday: Open All Day Wednesday: Open All Day Thursday: Open All Day Friday: Open All Day Saturday: Open All Day Sunday: Open All Day
A1 Guarantee, LLC accepts the following forms of payment: CreditCard
Yes, A1 Guarantee, LLC offers free project estimates.
No, A1 Guarantee, LLC does not offer eco-friendly accreditations.
No, A1 Guarantee, LLC does not offer a senior discount.
Yes, A1 Guarantee, LLC offers emergency services.
Yes, A1 Guarantee, LLC offers warranties.

Contact Information

229 E 9th Ave, Roselle, NJ 07203

Service Hours

Sunday:Open All Day
Monday:Open All Day
Tuesday:Open All Day
Wednesday:Open All Day
Thursday:Open All Day
Friday:Open All Day
Saturday:Open All Day
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