Financing all Credit Types - 
Financing all Credit Types -
Financing all Credit Types -
Financing all Credit Types -
Mobile Mechanic & Roadside Assistance
Getting your car repaired in Thornton shouldn’t mean arranging a ride or burning half a workday. Here’s how a typical booking works.
Tell us your vehicle, location, and what’s going on. We’ll confirm availability and give you an upfront price — usually within minutes.
A certified mechanic arrives at your address in Thornton — home driveway, office parking lot, or anywhere your car is sitting safely.
Most repairs wrap in 1–2 hours. You pay only after the work is done. Every repair carries a 12-month / 12,000-mile warranty.
Peak-hour congestion in Thornton, NH means a shop trip costs 2–3 hours minimum. We Come to You with Same-Day Service.
No tow fee, no shop markup. Flat-rate pricing means the quote you get is exactly what you pay.
Every mechanic is ASE-certified. All repairs backed by a 12-month / 12,000-mile warranty — at no extra cost.
Wherever your car is, we come to you. Driveway, office parking lot, or side of the road — no tow needed.
Your vehicle experiences different wear depending on where you drive. In Thornton, Instant car fix provide repair and maintenance services that help drivers stay safely on the road. Our mobile mechanics are equipped to handle the most common repairs, including battery replacement, brake repair, and alternator diagnostics. Each service is performed on-site, with no shop visit required, and backed by a 12-month or 12,000-mile warranty.
Spring brings the need for vehicle maintenance after winter wear.
High temperatures can lead to overheating issues, making cooling system maintenance essential.
As temperatures drop, it's vital to prepare vehicles for winter driving.
Cold weather can lead to difficult starts and traction issues.
All services are performed on-site at your designated location. Our mobile service approach eliminates the need for towing or transporting vehicles, saving you time and minimizing fleet downtime.
High temperatures can cause overheating and battery failures. Regular checks are essential.
Hilly and wooded areas can lead to increased wear on brakes and tires. Regular maintenance is key.
A mix of vehicles requires specific maintenance plans to ensure reliability.
Skip the shop. Our certified mobile mechanics perform most repairs right where your car is parked, saving you time and towing costs.
Get a free quote →We come to your driveway, office, or roadside — wherever your car is.
Common repair calls in Thornton often relate to the demands of recreational driving.
"Diego's truck wouldn't start while parked near the local hiking trail."
"Monique noticed coolant leaking while driving on a scenic route."
I had my doubts about this service, however I was very pleasantly surprised with how simple and easy it was to setup an appointment. Also the representatives are very communicative with you. They will update you regularly and keep you informed of any delays. Very very good and helpful service. The mechanic I had was very informative and transparent about the fix details, he arrived early and finished the job quickly. I would highly recommend this service to anyone. They are cheaper than your average shop and have flexible payment options. Fantastic service.
Outstanding service! Knowledgeable and professional staff. The mechanic was ASE certified. Will be back for sure
I’m extremely satisfied with the service. The mechanic arrived on time. The whole process was smooth and the repair was completed quicker than I expected. Instant Car Fix definitely earned my trust. The work performed was replacing the HVAC blower motor on my 2008 Lexus RX 400h. Pictures show the broken strut that was replaced,
The mechanic showed up on time. Removing my O2 sensor was a tough task. He did not give up! I would recommend this service if you do not want to leave the comfort of your home.
I was alittle skeptical at first because I've never used a service like this before. After speaking with a very nice, respectful, and truly professional, I was so relieved!!! Kivan, you are an amazing young man and I hope the company recognizes that. A huge Thank you for your kindness, helpful tactics, and going the extra mile to help me. May God Bless you with greatness. 😊 Update 7/27: I had the best experience of my life. Jim G. is such an amazing mechanic and did a great job on my vehicle. He was very professional, he also explained things I needed to know about my vehicle. Great mechanic that I highly recommend. Thank you.
The technician arrive and begun the work. He knew what had to be done and did it. He was very knowledge of the work. I would have no problem hiring the company and him again. Keep up the good work.
Got my van fixed and I can get around again so that’s all that matters. Had a good knowledge mechanic named Greg and he was very helpful and actually got the total job done in good time. Not sure about the price but you have to pay an arm and leg sometimes to get the job done, I’m driving again and that’s all that matters
I went to ICF for help with installing a starter. The service provided had been stellar, the mechanic had been great as well. If I'm in need again, I'll be considering their service guaranteed.
My experience was great. Other than a slight delay due to the weather the service was great. My Mechanic Edi got right to it. Fixed my ball joint and got me back on the road. Thanks Edi and Instant Car Fix.
I had my doubts about this service, however I was very pleasantly surprised with how simple and easy it was to setup an appointment. Also the representatives are very communicative with you. They will update you regularly and keep you informed of any delays. Very very good and helpful service. The mechanic I had was very informative and transparent about the fix details, he arrived early and finished the job quickly. I would highly recommend this service to anyone. They are cheaper than your average shop and have flexible payment options. Fantastic service.
Outstanding service! Knowledgeable and professional staff. The mechanic was ASE certified. Will be back for sure
I’m extremely satisfied with the service. The mechanic arrived on time. The whole process was smooth and the repair was completed quicker than I expected. Instant Car Fix definitely earned my trust. The work performed was replacing the HVAC blower motor on my 2008 Lexus RX 400h. Pictures show the broken strut that was replaced,
The mechanic showed up on time. Removing my O2 sensor was a tough task. He did not give up! I would recommend this service if you do not want to leave the comfort of your home.
I was alittle skeptical at first because I've never used a service like this before. After speaking with a very nice, respectful, and truly professional, I was so relieved!!! Kivan, you are an amazing young man and I hope the company recognizes that. A huge Thank you for your kindness, helpful tactics, and going the extra mile to help me. May God Bless you with greatness. 😊 Update 7/27: I had the best experience of my life. Jim G. is such an amazing mechanic and did a great job on my vehicle. He was very professional, he also explained things I needed to know about my vehicle. Great mechanic that I highly recommend. Thank you.
The technician arrive and begun the work. He knew what had to be done and did it. He was very knowledge of the work. I would have no problem hiring the company and him again. Keep up the good work.
Got my van fixed and I can get around again so that’s all that matters. Had a good knowledge mechanic named Greg and he was very helpful and actually got the total job done in good time. Not sure about the price but you have to pay an arm and leg sometimes to get the job done, I’m driving again and that’s all that matters
I went to ICF for help with installing a starter. The service provided had been stellar, the mechanic had been great as well. If I'm in need again, I'll be considering their service guaranteed.
My experience was great. Other than a slight delay due to the weather the service was great. My Mechanic Edi got right to it. Fixed my ball joint and got me back on the road. Thanks Edi and Instant Car Fix.
