If moss comes back inside the year, so do we — free.
RoofShield™ is our two-visit treatment system: an EPA-approved biocide kills moss, mould and lichen at the root, the weather carries the dead growth away, and a 12-month no-new-growth guarantee stands behind the result.
Two treatment visits, a follow-up call and a 12-month guarantee. Tell us about the roof and we’ll send a written proposal — most homes don’t need a site visit.
Get my free proposal →Two treatments and a promise in writing.
RoofShield™ is one price for the whole system — both visits, the follow-up call and the guarantee. No add-ons, no per-visit billing.
An EPA-approved biocide across the whole roof, twice — the second application catches anything the first missed and extends the protection.
No new growth for 12 months from the second visit. If anything comes back inside the window, the booster treatment is on us.
Two visits, then the weather works for you.
RoofShield™ never blasts anything. The biocide does the killing, rain and wind strip out the dead material over the following months, and the second visit locks the result in for the guarantee to stand on.
The treatment
Planting pre-rinsed and protected, then an EPA-approved biocide applied across the whole roof. The kill starts at the root within days — no scrubbing, no pressure.
The second pass
A scheduled return application catches anything the first pass missed and extends the protection — with a follow-up call to check how the roof is coming along.
12 months, no new growth
If new growth appears within 12 months of the second visit, we come back with a booster treatment — free. The terms are published, not fine print.
Treated, then the weather did the rest.
ROOFSHIELD™ · TEXTURED TILE · NO TOUCH-UPS

Not happy? We’ll put it right.
And if you’d rather we didn’t, we’ll pay a licensed competitor to finish the work.
Found it cheaper? We’ll match it.
Any written quote for the same scope from a licensed competitor — matched, same guarantee.
RoofShield™ questions.
Q1What exactly is RoofShield™?
Our premium roof treatment system: two biocide treatment visits, a follow-up call to check progress, and a 12-month no-new-growth guarantee. It removes existing moss, mould and lichen and keeps new growth from establishing — without pressure ever touching the roof.
Q2How is it different from a standard roof treatment?
A standard Roof Treatment is a single preventative application with no guarantee — ideal for roofs with minimal existing growth. RoofShield™ adds a second treatment visit, a follow-up call, and the written 12-month guarantee, which makes it the right call for roofs with established growth you want gone and kept gone.
Q3What does the guarantee actually cover?
No new growth for 12 months from the date of the second treatment visit — if new growth appears in that window, we provide a free booster treatment. It doesn’t cover areas outside the original scope, or the gradual natural breakdown of existing dead growth. Full terms are on the RoofShield Guarantee page.
Q4How long until the roof looks clean?
The treatment kills growth at the root within days, then rain and wind carry the dead material away — most roofs look dramatically better within a few months, with full results taking up to 12 months. Heavy, established lichen is the slowest to release.
Q5Is it safe for my roof material and garden?
Yes. The EPA-approved biocide is safe on every roofing material — tile, metal, Colorsteel and decramastic — and your planting is pre-rinsed and protected before we spray, with overspray rinsed as we go.
Q6What happens after the 12 months?
RoofShield™ typically holds well past the guarantee window. When growth eventually returns, a standard single treatment between RoofShield™ cycles is usually all the roof needs — a third of the cost of washing it.
5.0 from 431 reviews.
“This is the 2nd time we've used this company and their attention to detail, care and desire to go the extra mile was so refreshing. The guys were wonderful and we will certainly use them again. Many thanks.
“We started with Pinnacle getting our skylight cleaned. Jack did a great job and noticed our gutters and house also needed a clean so we got him back. He did an awesome job and we would highly recommend using them. Very thorough and a good price too!
“Friendly and professional service provided by Ollie when quoting and Jack who completed the job. Excellent response to questions. Arrived on time and completed the job within the timeframe expected. Will use Pinnacle for the next house was.
“Kody did an excellent job, super happy with the end result, my house hasn’t looked this good for years.
“Kody at Pinnacle Building Wash recently cleaned our gutters and deck and it's never looked better! I've used them a couple times now and will definitely again in the future.
“Hi there, I had the full exterior of my house cleaned and guttering fixed by Kody who did a brilliant job. The finished result was perfect without a speck in sight, quite the contrast to how it was before all covered in cobwebs and debris. He also finished the job in a very timely manner. I found Kody to be very courteous, and had a professional manner and would definitely recommend his service. Thank you Rebecca Bain
“Pinnacle building wash are great! I had a superior gutter clean. Excellent comms and a pleasure to deal with. Nothing was too much trouble for Jack - he got on and did the job brilliantly. I highly recommend Pinnacle and will be using them again in the future.
“Highly recommend Liam and Jack! They did an amazing job of treating our roof and even cleaned our gutters. Great communication from start to finish, excellent customer service, and Jack’s workmanship was fantastic. Both were very friendly, professional, and easy to deal with. We’re really happy with the result — thank you both so much!
“Absolutely fantastic such attention to detail and so thorough. Jack does an amazing job above and beyond! Can't recommend enough, thanks so much for all your hard work my house looks like a thing of beauty now!
“Brilliant job washing house and windows, cleaning gutters and treating lichen on the roof. Easy to quote and book service and value for money. Courteous, helpful, fast and efficient work! We will book again next year.
“We did a house wash and mould treatment, great service and advice! Olly and Jack were professional, thorough, and provided top-notch advice on preventing future mould issues. Would definitely use again! Highly recommend!
“Jack has done a good job on our house cleaning. He arrived on time and finish the job with minimum interruption to us, also provide us with treatment for the roofs with photo evidence.
“Awesome job! Great to deal with from start to finish, and house looks fantastic. Highly recommend.
“Great service from Kody at Pinnacle Building Wash. He was on time, great to deal with, and the house looks amazing. Highly recommended.
“My neighbour recommended us to Pinnacle Building Wash. Kody was fabulous to deal with. He arrived bang on time and was very professional, yet friendly in his approach. We were super impressed with the attention to detail he put into his work at cleaning our roof, and also his open and honest communication throughout the job. One of the rare tradies that left his work clean and tidy too! Olly was also prompt and efficient in his communication at setting up our roof clean. On the whole we view Pinnacle Building Wash a professional and switched on company to deal with. We highly recommend, thanks team.
“Great communication right from the get go. Jack arrived on time, was friendly and professional, and has left the house spotless! I’d recommend to anyone wanting a full exterior clean of their house. The process to book it in was smooth and the outcome is excellent!
“Stellar work from Kody - our house and roof was spotless. The entire process from the quote, to booking, to the actual day of the house wash was easy and straightforward. Highly recommend this team.
“Really efficient. Easy to deal with. Had everything they needed to be done with the in less than an hour. Kody just got on with it right away and clearly communicated what was going in parts of gutters I couldn't reach. Will go to again
“Pinnacle Building Wash did an absolutely excellent job today. Very professional, punctual and detail-oriented. Everything looks fresh and spotless. Highly recommend their services.
“Pinnacle Building Wash was excellent! Easy to book, competitive price and great comms from start to finish. Jack was personable and did a brilliant job and I couldn’t be happier. Highly recommend
“Annual house clean and as usual came home to an amazingly lovely home. Spiderwebs gone, windows sparkling and gutters cleared. Outstanding job - very professional work.
“Awesome service - Kody was efficient, careful and very thorough. Excellent communication. Second time we’ve used pinnacle and will definitely keep on doing so!
“Pinnacle were a pleasure to deal with from the Initial Enquiry through to completion of the job cleaning gutters Jack who carried out the task was engaging and set about the work with an obvious high degree of professionalism He provided a thorough debrief on completion We could not be more pleased and recommend without reservation the services of Pinnacle and Jack Joe Baker
“My house and windows were washed last week by Aaron. He did a wonderful job and even climbed onto the roof to blast the lichen off the perspex roof of the front porch. The old house looks almost brand new. The price was not too expensive, cheaper than others, and very affordable. Many thanks.
“Just had Aaron do my yearly house clean which can be challenging as my place is on the side of the hill. He went above and beyond as I wanted him to try and get to the back of my house this time which is not easy at all and he managed it and my windows look fantastic.
“Amazing service. Such a good experience they were helpful and thorough and well priced highly recommended
“Exceptional service! Aaron did such a fantastic job blast-cleaning the spouting and conquered great heights that we could never reach. Plus he gave us some knowledgeable advice too. These guys are awesome to deal with. Good honest and hardworking. Thanks!
“Pinnacle were great to deal with. They were happy to explain their services when I first enquired and replied really quickly. Kody did an excellent job washing the house and applying the roof treatment, professional and thorough. Really nice people as well. Would definitely recommend.
“It was a pleasure to meet Cody from Pinnacle. He arrived on time, had a nice engagement style and he undertook a tricky job with minimal fuss and bother. He had all the right tools at his disposal, tidied up afterwards and then checked in afterwards to see if there was anything else needed. Awesome customer experience.
“We had the pleasure of Pinnacle Building wash on site for the last couple of days Jack did an awesome job as the site is very big. Thanks heaps young Jack all the best 👍 🙂
“Had Aaron come over to clean my gutters as they were quite bad and weren’t draining at all and I wasn’t confident on getting up on the roof as the house is on the side of a hill. Aaron did a very good job and was super chill and friendly. Aaron washed away all the debris on the ground and even gave the house and windows a cheeky clean which I didn’t expect. Appreciative the work Aaron! I will definitely use this company again!!!
“Highly recommend- fast and friendly response to my online query. Kody was awesome and did a really great job. Stoked with the results and will definitely use again in the future A++
“Second time using Pinnacle, great results. Did a roof and gutter clear to remove lichen build up and it is absolutely spotless; looks brand new again
“This is the best company that I have encountered. The work ethic is amazing along with a willingness to do the best job . We have worked with Pinnacle for the past 5 years they are incredible . Honest reliable and fastidious.
“Thanks for a great job! Polite, friendly, and efficient service. They really went the extra mile.
“Absolutely recommend, house looks amazing. Very professional and friendly service.
“Jack did amazing work. Fast, easy to communicate with, and great quality. Will use them again.
“Jack from Pinnacle did a great job, exceeded my expectations. Very friendly to deal with. Would highly recommend.
“Kody did a great job of cleaning our rooves until they sparkle and treating the lichen on our four storey thin tower of a house. He and Olly were great to deal with. Highly recommended.
“We had our gutters cleaned out and whiskers/brushes installed. Great service, friendly and efficient, and went over and above to ensure we were happy. Highly recommended!
“Cody from Pinnacle did an absolutely stellar job washing the exterior of our house. We painted it 4 years ago and it had a lot of dust, dirt and cobwebs. It’s now looking as fresh as it did 4 years ago. Cody was super fast, efficient and a lovely guy too! Thank you, we won’t wait 4 years for the next wash! ☺️
“Kody did a great job clearing our gutters. He was friendly, efficient, and easy to deal with. Highly recommend!
Get a proposal for your place.
One short form, one written proposal back. No obligation, and no site visit for most homes.