Full Range of Professional Auto Services

Drive confidently with a full range of automotive repairs

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Our Services

Complete Auto Maintenance Services

Stop the Search for Costly Specialty Auto Maintenance

Same-Day Service Provided in Most Cases

You deserve comprehensive repairs performed properly and professionally; receive cost-effective service from our ASE-certified technicians. We have years of experience in various auto maintenance work. Contact us today.

Oil and filter changes

Factory-scheduled maintenance


Differential service

Belts and hoses

CV joints and axles

Vehicle inspections

Clutch replacement

Automatic flywheel replacement

Manual flywheel resurfacing

We Are An Authorized Installer For Ignition Interlock!

Intoxalock is a top-rated ignition interlock provider with affordable pricing and a reliable, high-quality, easy-to- use devices. The intoxalock on-site calibration station kiosk makes servicing the device fast and simple. Let us help you get back on the road after a DUI with an iginition interlock device.

Easy to read LED display

Easy blow patterns

Fast warm up time

English, Spanish & other languages

Device Protection Plans Offered by Intoxalock

Recalibrations – No Appointment Necessary

Quality Brake Services

Protect Your Family With a Functioning Brake System. Don’t let brake maintenance fall to the wayside; call us for a FREE estimate on routine maintenance and repairs. Stop Your Car Instantaneously in Any Situation. Your braking system is an energy conversion device that converts the kinetic energy of your vehicle into thermal energy. In short, it creates heat from momentum. When you activate this system by stepping on the brakes, you command a stopping force ten times as powerful as the force that puts your automobile into motion.

Your brakes are the most important component of your car. If they fail, the results can be catastrophic. When you ensure that your car’s or truck’s brakes are well-maintained, they’ll be reliable when you need them the most.

Brake fluid flush

Machining diagnosis

Master cylinders

Brake drums and rotors

Pad replacement

Emergency brakes

Power boosters

Hose and line replacement

Wheel cylinders

Brake lining replacement

Full-Scale Transmission Services

Treat yourself to a like-new vehicle with our affordable automatic and manual transmission repairs and rebuilds. Your transmission flaw may seem insignificant at first, but it will worsen with time. Completing your automotive transmission repair as soon as the problem appears will save you money on costly emergency repairs in the long run. Your transmission service and power flush package includes removal of the transmission pan and as-needed cleaning or replacement of the filter. When you treat your transmission to comprehensive care, your vehicle is sure to continue running as good as new.

Electrical and non-electric diagnosis

Custom 4X4 transmissions

Power take-off (PTO)

Shift kit installations

Fleet commercial value

Transfer cases and drive axles

High-performance and heavy-duty transmissions

Transmission band adjustments

Manual clutch service and repairs

Transmission fluid exchange

First-Rate Heating and Cooling Services

Your car will be ready for the most extreme of weather with our inexpensive heating and cooling system checks. Your engine’s cooling system is designed to remove excess heat from the engine. This enables the engine to operate at its most efficient temperature and to stabilize at this temperature as soon as possible after starting. Servicing your car’s heating and cooling system will ensure that you and your passengers are comfortable inside regardless of the weather outside.

Air conditioning service

Cooling system hoses and belts

Radiator flush and fill

Cooling system diagnosis


Electric fans and fan clutches

Transmission coolers

Water pumps

Fuel System Services

You’ll drive away with confidence when our ASE-certified mechanics service both your fuel system issue and your wallet. Your fuel system provides the ingredients for proper performance to your automobile’s engine. Your automobile’s air-fuel mixture must be in proportion to the speed and load placed on the engine at all times.

BG fuel injection service

Fuel lines serviced

Fuel systems diagnosed

Fuel pumps replaced

Fuel filters installed

Fuel tanks replaced

Fuel hoses inspected and repaired

Fuel injection repair

Auto Diagnostic Services

Feel secure in your vehicle’s state with our low-cost services equipped to provide diagnostics to all cars and light trucks. Your warning lights are more than just an annoyance. They’re a signal that something is wrong with your car’s engine, exhaust, or electrical systems. You can ensure your problem won’t worsen by running diagnostics on your automobile’s systems as soon as any lights appear. 

Check engine light codes

Dashboard warning lights

Electrical and computer diagnostics

Battery testing

Starter testing, repair, and replacement

Alternator testing or replacement

Engine performance issues

Emissions diagnostics

Electrical wiring repair and remote

Drivability diagnostics

High-Quality Exhaust and Suspension Services

Don’t disregard dashboard warning lights; call us for a FREE estimate on exhaust diagnostics and repair services. Also, boost your vehicle’s stability with a suspension check. If your check engine light is on, you may be sacrificing engine performance due to inefficient fuel burning. Returning your car to its optimum running potential is as easy as scheduling an exhaust system checkup. The components of your suspension system will eventually wear out and require repair. If your vehicle is riding improperly, it may be time for suspension service. When you perform this service sooner rather than later, you ensure that blown shocks or struts won’t damage other elements of your car’s system.

Emission service

Check engine lights

Catalytic converters

Muffler inspection and replacement

Custom exhaust

Front-end alignment

New shocks and struts

4-wheel alignments

Steering fluid flush

Suspension repair

Top-Notch Emissions Service

Are you worried about the emissions from your automobile? At Mad Hatter Mufflers & Auto Repair, we can provide you with high-quality auto maintenance services. We will take complete care of your emissions system for all makes and models of automobiles. Emission control system is an integral part of your automobile, which cannot afford to malfunction at any point of your vehicle’s operation. We have an emissions test site certified by the state of Connecticut. Call us today to learn more about our services, and if you have an emissions testing card, please bring it with you.

Testing hours are: Monday – Friday 8am – 5pm and Saturday 8am – 1pm. Our preferred mode of payment is cash.