Clinton, MA
(978) 365-7070

Chestnut Street, Clinton, MA. Family-owned since 1979

Guaranty Auto Sales & Service

Auto repair, collision and towing from one shop. ASE master technicians, two licensed appraisers on site, and free same-day estimates.

The guarantee is in the name

The terms, printed as large as the name.

These are the terms Guaranty Auto publishes for its mechanical and body work, set out in plain sight rather than on the back of an invoice.

24,000-Mile Parts and Labor Warranties

24,000 miles

on parts and labor. Two-Year Warranties on Most Repairs.

Refinishing
Lifetime warranty
Estimates
Free, same day
New customers
10% off10% Off Parts and Labor for New Customers, on mechanical repairs
Written quote
Price matchedPrice Matching Available With a Written Quote

$50

Under Massachusetts law a final bill may vary up to $50 from the estimate for incidentals. If a repair is going to run more than $50 over, every attempt is made to contact you before the extra work goes ahead.

Out of the body shop

What a full-service collision center looks like from the inside.

The body shop keeps a continental frame machine and a MIG welder for special projects, and two licensed auto body damage appraisers work on site.

A white Jeep with its body lifted off, under repair inside the Guaranty Auto body shop

Restoration

A Jeep, body off, back to bare structure.

Vehicle restoration is one of the three things the auto body side names as its specialty, next to collision repair and detailing. This white Jeep is in the shop with its body lifted off the frame.

Welding on a vehicle frame section inside the Guaranty Auto body shop

Frame and welding

A continental frame machine and a MIG welder.

The auto body side lists both for its special projects. Here, a frame section is being welded in the shop.

A Guaranty Auto body technician buffing a dark vehicle panel

Refinishing

Finish work, with a lifetime warranty on it.

Every refinish carries a lifetime warranty. The shop works with all insurance companies and can arrange a rental while your car is in.

The finished white Jeep parked outside Guaranty Auto in Clinton

Back on the lot

Finished, and back outside.

A finished white Jeep parked on the lot outside the shop on Chestnut Street.

Two 2017 Best of the Best First Place plaques for Guaranty Auto: Best Auto Body/Collision and Best Auto Repair
The two plaques, The Item and The Banner, 2017.

Best of the Best, 2017. Since 1979

First place, twice.

In the 2017 Best of the Best People's Choice Awards from The Item and The Banner, Guaranty Auto took First Place for Best Auto Repair and First Place for Best Auto Body/Collision.

First Place
Best Auto Repair
First Place
Best Auto Body/Collision

The job: a cracked resonator, ten months in

“No questions asked, simply honored their warranty.”

2nd time bringing my car in this year for an emergency repair. Car had a load of work done back in February. Entire exhaust system was replaced. Unfortunately i ran into a cracked resonator about 10 months in. Without hesitation the guys had the replacement resonator ordered and replaced free of charge two days later. No questions asked, simply honored their warranty. Owner himself offered ride home while car was being repaired. Exceptional service every time I’ve come. Will continue to bring my car to them as now a days it’s almost impossible to find a respectable mechanic. Thanks again guys!

Michael Perkins, Google review

After a failed inspection

Honesty matters! Integrity matters! Brought my vehicle in to do some safety repairs after a failed inspection. One item failed for was brakes-which I truly didn’t think I needed brakes, and Guaranty Auto confirmed that. They could have easily said I needed brakes and charged me for those. If you want honestly-Guaranty Auto is your place!
Michelle Chaves

After a minor collision

My car looked better than new after Doug and Guaranty repaired it after a minor collision. A perfect job, highly recommend.
John Asara

Rated 4.6 out of 5 from 75 Google reviews. Read them on Google

Straight answers

Questions drivers ask at the counter.

From check engine lights to dealer warranty rules, answered the way the shop answers them.

All six questions

Estimates are written for ideal conditions. Small incidentals like a clamp, a bolt or the exact amount of fluid can add to a job, and in New England rusted or frozen parts such as brake bleeder screws sometimes break and have to be replaced. If a repair is going to vary by more than $50 from the estimate, every attempt is made to contact you before going ahead. You should know that under Massachusetts law, the actual repair bill may vary up to $50 from the estimate received for incidentals.

A sensor has told the vehicle's computer there is a problem somewhere. It does not necessarily mean a breakdown is coming. If the car seems to be running fine it probably is, and it is not an emergency, but have the trouble code read in a timely manner so a small problem does not turn into a more costly repair.

Until the car is looked at, nobody can tell you for sure, and noisy brakes do not always need repairs. A high-pitched squeal can be a pad wear sensor. Grinding metal on metal means the pads are gone and the rotors or drums are being damaged. A soft pedal, pulling to one side, pulsing at speed or a burning smell each point to different parts of the system.

No. Federal law, the Magnuson-Moss Act of 1975, prohibits a new car dealer from denying warranty service, or implying it will be voided, because servicing or repairs were done somewhere else. New car owner manuals also state that maintenance, replacement or repair of the emission control devices may be performed by any automotive repair establishment without invalidating the manufacturer's warranty.

115 Chestnut St., Clinton, MA 01510

Bring it to Chestnut Street.

Free Wi-Fi while you wait, free same-day estimates, and a service request answered the same business day. New customers get 10% off parts and labor on mechanical repairs.

Mon to Fri
8:00 AM to 5:00 PM
Sat and Sun
Closed