“Flawless result and fantastic service. Tony's a genuine legend; clearly passionate about cars and takes a lot of pride in his work. He treated my car with the same care and respect he would one of his own, and I couldn't be happier with his work.”

Ceramic Coating & Paint Correction in The Hills District & Hawkesbury
Based in Maraylya NSW, Tony Portelli applies 30+ years of show-car and street-rod mastery to protect brand-new daily vehicles and prized classic & muscle cars to a genuine mirror finish.
Two Worlds Perfected Under One Roof
We apply professional-grade Always Dry 9H & Diamond nano-ceramic paint protection inside our clean, climate-controlled Maraylya studio — backed by genuine installer precision and full multi-stage paint preparation.
New Car Ceramic Coating & Tint
Lock in deeper-than-factory gloss before Sydney UV, tree sap, and highway stone dust take their toll. Ideal for new family SUVs, EVs, 4WDs, and European performance vehicles across Box Hill, Rouse Hill, Kellyville, and Norwest.
- Better-than-dealership prep & correction before coating
- Authorised Always Dry 9H & Diamond hydrophobic protection
- Metal-free nano-ceramic window tint for heat & UV rejection
Classic, Muscle & Show-Car Restoration Finishing
30+ years in the street-rod and show-car world means delicate vintage lacquer, custom two-pack paint, classic 1960s muscle (like '69 Holden Monaro GTS 350s & classic Chevrolets), hot rods, and restomods are never trusted to guesswork.
- Safe ultrasonic clear-coat & single-stage paint gauge checks
- Multi-stage orange-peel, hologram & sanding-mark refinement
- Pre-show concourse prep, chrome & engine bay detailing
30 Years of Paint Perfection — Zero Shortcuts
Groom Garage isn't a conveyor-belt car wash or roadside mobile van. Led personally by Tony Portelli, our workshop brings three decades of street-rod, restoration, and show-car finishing to vehicle owners across Maraylya, Box Hill, Rouse Hill, Kellyville, Castle Hill, Dural, and Windsor.
Every job — from protecting a brand-new SUV with Always Dry ceramic coating to erasing rotary holograms on an iconic classic — gets dedicated indoor time, ultrasonic depth monitoring, and honest one-on-one care.

Specialists in Ceramic Coating, Correction & Tinting
Our Studio Services

Ceramic Coating
Authorised Always Dry 9H ceramic protection and deep show-car gloss locked over corrected paintwork.

Paint Correction
Obsessive multi-stage machine polishing to permanently eliminate swirl marks, haze, and oxidation.

Detailing
Meticulous interior and exterior studio rejuvenation for daily drivers, luxury SUVs, and weekend toys.

Paint Touch Ups
Precision colour-matched repairs for stone chips and minor clear-coat marks before protection.

Vinyl Signs Stickers and Graphics
Custom cast vinyl stripes, vehicle graphics, and trade signage fitted cleanly in our Maraylya bay.

Ceramic Window Tinting
Metal-free nano-ceramic window film rejecting harsh Australian heat and 99% of UV rays.

Classic & Muscle Car Finishing
Specialist paint refinement, chrome & engine bay detailing, and Always Dry protection for classics, muscle cars & hot rods.
By-Appointment Studio Workflow
Our Multi-Stage Assessment, Correction & Protection Process
Get In Touch
Send an enquiry or call Tony to discuss your daily driver, new SUV, EV, or classic cruiser and what finish you're after.
By Appointment Only
We lock in a dedicated studio slot in Maraylya — zero rushed conveyor-belt work, one vehicle given full attention.
We Assess & Confirm
Tony inspects the paintwork under calibration lighting, measures clear-coat depth, and confirms the right correction & Always Dry coating plan.
The Work Is Done Right
From multi-stage paint correction to Always Dry 9H ceramic coating, every panel receives 30+ years of obsessive craft.
Drive Away Showroom-Ready
Collect your vehicle with mirror depth, hydrophobic protection, and simple aftercare guidance built for Sydney conditions.
Verified 5.0-Star Google Reputation
What Local Owners & Builders Say
“I had my Sera detailed at P Groom Garage with Tony and his team, and the experience was exceptional. Tony was honest, down-to-earth, and took the time to walk me through everything. My Orange Pearl car, which was notoriously tough to perfect, looked absolutely flawless and ready to photograph. The ceramic coating and three-step polish left it looking brand new. I couldn’t be happier with the result. Highly recommend these guys”
“Great work, great service”
“I had my car detailed at Groom Garage with Tony and his team, and the experience was exceptional. Tony was honest, down-to-earth, and took the time to walk me through everything. My black mercedes coupe, which is notoriously tough to perfect, now looks absolutely flawless. The ceramic coating and three-step polish left it looking like new. I couldn’t be happier with the result. Highly recommend these guys!”
“Our business specialises in building and restoring classic cars and hot rods, during the final assembly stages of our builds, we have Tony do what he does best!! We recommend all our clients to Groom Garage for an entire paint correction service, or for a pre show detail and prep.”
“As a repeat client, I am super impressed with the ceramic coating on my new Outlander. I have had two cars completed with Tony and the team at Groom Garage. Tony is a pleasure to do business with, his workmanship and attention to detail is excellent. My vehicle looks amazing, better now than when I first bought it from the car dealership. I would definitely recommend Groom Garage.”
“I had my Porsche paint corrected and ceramic coated. What a fantastic job . The depth of the shine is more than worth the cost. Very please and will be letting members of the club know how professional your work complements the finish.”
Straight Answers From Tony
Frequently Asked Questions
21 St Mary's Place, Maraylya NSW 2765
Servicing The Hills District, Hawkesbury & Surrounds
Our quiet rural studio in Maraylya sits just 8–24 minutes from Box Hill, Rouse Hill, Kellyville, Norwest, Castle Hill, Dural, and Windsor — giving your vehicle enclosed indoor security and dedicated drop-off parking.
Ready for Genuine Show-Car Gloss?
Speak directly with Tony Portelli at our Maraylya studio — by appointment only across The Hills District & Hawkesbury.









