Here is a small selection of unsolicited communications we have received from our customers.  From all across Sydney and beyond, we have been vacuuming, cleaning, extracting dust, lead and asbestos and installing our products for families and businesses. One wouldn’t expect that our kind of work would inspire anyone to write thank you letters, but when you consider that home is where the heart is, the feeling of knowing that your roof is safe, clean and playing a critical part in keeping your home cool in summer and warm in winter, saving on energy bills and improving every day comfort, perhaps it is understandable. 


Hi Grace,

We recently used Insulvac to insulate our entire newly purchased home. Right from the start the service was fantastic!

Gavin was extremely accommodating and down to earth in his approach. The actual installation was smooth with no hiccups. All extremely professional!

We had builders working on our home at the time of the install that needed to get up into the roof after the job had been completed. They said the Insulvac job was extremely well done; very neat and very clean.

We have noticed a huge difference since the installation in terms of heat retention & look forward to a cooler summer.

We would highly recommend Insulvac to anyone & everyone! It was a great pleasure dealing with Gavin, Grace & the team!

Thank you! Cheers

Amy , Hunters Hill.

27 April 2017

Hi Gavin

I engaged Insulvac (Gavin and his team) to vacuum the roof cavity which had layers of more than 40 years of dust. The team did a fantastic job and installed insulation. The team and the young lady in the office was very efficient and was prompt in their service. I strongly recommend them for the cleaning of roof cavity.


Viva – Strathfield South

27 April 2017

Thank you for all your help.  We are very pleased with the work that was done and will certainly be recommending Insulvac to friends and family.

Kind regards,

Emma – North Balgowlah

Dear Desiree,

I would like to thank you and your field team for the work done on this job. The job was very well done and was carried out very professionally and the results have certainly exceeded our expectations. Our house is approx. 96 years old but the ceiling in the roof space has come up looking like new!

Yours sincerely,

Graham - Parry St, Putney 

September 16, 2015


Dear Gavin & Team

I would like to thank Gavin and his team for the excellent job they did vacuuming my roof cavity and replacing the ceiling batts about a year ago. I have noticed that the interior of the house is more comfortable in the hotter weather. They were very professional, efficient, prompt and courteous. I can highly recommend Insulvac for their services.

Kind Regards,

Kerry - Leith Street, Ashbury

January 17, 2014


Dear Gavin and team at Insulvac.


Just wanted to thank you again for the great job today. I have no hesitation in recommending your team after I had my ceiling space vacuumed and insulated today.

I live in a simple single storey terrace which is over 100 years old and since moving here nearly 20 years ago, I have always worried about the accumulated dust, debris and toxins which have built up over this time. I can now use the attic space without being anxious about what I am inhaling...Gavin's open, friendly and honest approach at the time of quote was much appreciated and the attention to detail on the day was second to none. The workmanship and efficiency on the day was wonderful and I wish you all the very best or continued success for your business.

My only regret is that I didn't get the job done sooner!


Fiona - Dickson Street, Newtown

January 10, 2014


Hi Nadia,

Your people were very efficient and professional. Thank them again for me. If any of our friends are looking for your type of services I will be highly recommending you.

Kind Regards,

Sonia - River Avenue, Chatswood

December 3, 2013


Hi Gavin,

Just wanted to let you know how pleased I am with the work you and your team did. You made the whole experience fast, easy and no stress. I especially liked your professionalism and upfront approach. I will certainly be recommending your company in the future.

Thanks again

Sandy Baird - Victoria Street, Lewisham

November 13, 2013


Dear Gavin,

Just wanted to let you know that we are thrilled with our ceiling vacuum service and insulation performed yesterday by your team.

It is very satisfying to know that not only have we now done something to our property that is environmentally sound but that it is also cleaner and more user friendly. We found your team to be totally professional and efficient and would not hesitate to strongly recommend you to all our friends.

With much thanks.

Nicky - Bickell Road, Mosman

August 2, 2013


We would like to thank Gavin and the Insulvac team for a really professional job they completed for us that included vacuuming, cleaning, insulation and adding a roof vent. They were prompt and courteous in providing a quotation as well as advising us on specific requirements. We are very satisfied with the workmanship and the completed job. We would recommend them as a company of first choice for all insulation, vacuuming needs.


Paul & Kerrie Carroll - Thornton Street, Fairlight

July 30, 2013


Thanks Nadia. The team were great! Very friendly, polite and seemed very efficient. Thanks so much for a great service from start to finish!


Lauren - Shirley Road, Roseville

June 26, 2013


Thanks Nadia.

The guys were very professional and did a good job


John - Alfred Street, Rozelle

May 8, 2013


We would like to thank the Insulvac team for cleaning and insulating our roof cavity at our Summer Hill residence.

Gavin was prompt in providing a quotation as well as advising our specific requirements.

The team arrived on time and carried out the works in a courteous and professional manner.

We are very satisfied customers and can recommend the Insulvac team on doing a thorough job and providing a high level of service.


Nick - Bartlett Street, Summer Hill

March 9,2013


Thanks Nadia,

We are happy with the work done.


Michael - Artarmon Road, Artarmon

February 14, 2013


Dear Nadia,

I'd like to add that the Ventis Ventilation that I had installed in the first place is now working beautifully with a clean roof and cavity and insulation!

Best Wishes,

Liz Hinton - Woolwich Road, Woolwich

February 8, 2013


Thank you Gavin and Amit for a job that was as professionally organised and as efficiently carried out as your website promised. I am delighted with my clean, insulated roof cavity and enjoyed having you around!

Best Wishes,

Liz Hinton - Woolwich Road, Woolwich

January 31, 2013

Hi Gavin,

Raymond and Maher have just finished - very happy, very professional. They worked without a break...I have signed to say that we are happy with works Will recommend Insulvac

Best Regards,

Paul and Fiona - Mons Street, Russell Lea

January 19, 2013

Hi Gavin,

I thought if you're interested to know, when I arrived home on Tuesday at 6:30pm the outside temperature in Bexley was 38 degrees and the inside temp of my home was 28.2 degrees. A favourable delta of 10 degrees. I switched on the AirCond and in 2 hours I had achieved 24 degrees with minimal humidity and that temp remained throughout the entire night. The 'new' insulation has assisted with reflecting the heat transfer immensely. Thanks again. Have a lovely time with your family.

Kind Regards,

Alexandra - Arthur Street, Bexley

January 10, 2013 

My thanks to Gavin and the two workers for a fabulous job at Allan Street, Roseville Chase


Anne - Allan Street, Roseville Chase

December 19, 2012

Thanks for a great job!


Michael - Lavender Street, Five Dock

November 21, 2012

Dear Gavin,

Thank you for your prompt and careful attention to cleaning and insulation of our new home.

Kind Regards,

Wendy - Prince Edward St, Gladesville

November 23, 2012

...Please pass my thanks on to Gavin and Ray for the great job. We can now continue with our renovations without worrying about what's lurking in the ceiling :)

All the Best,

Jacqui - Princes Highway, Woonona

October 15, 2012


Thanks to Gavin and the team for such efficient and well organised work.


Libby - Kenilworth Street, Croydon

October 3, 2012


Hi Nadia,

Thank you to all at Insulvac for the high level of professionalism across the board.

Kind regards

Anthony - Lang Street, Mosman

September 14, 2012


Hi Nadia,

Thank you very much and big thanks to Gavin and his colleague for a fantastic job last Fri with the ceiling spaces! And for cleaning up previous mess there that was there from another day when the electrician cut into the ceiling. Extremely thorough and thoughtful! Greatly appreciate it and appreciate Gavin's very professional, friendly and easy going, good humoured manner.

Many thanks for a great job

Kind regards,

Margaret - Reservoir Street, Surry Hills

September 14, 2012


I want to thank Gavin and his team, especially Maher and Amit who are excellent tradesmen. The care and attention to detail was of the highest order. The insulation job at hand was challenging to say the least and I am pleased that I went with the right company to do the install.

Stephen Elias - Orchard St, West Ryde

September 12, 2012


Many thanks to Gavin and his team. Gavin came out and did a thorough inspection of what needed to be done. They did a great job cleaning out the roof space and installing downlight covers and new insulation. There were 8 gigantic bags of stuff taken out. Insulvac came out on time and I now have a clean roof cavity but more importantly there are proper downlight covers for safety reasons. I can thoroughly recommend Insulvac        

Shirley - Catherine Street, Leichhardt

August 20, 2012


Hi Gavin,

The first winter in our new home was very cold so we made ample us of heaters. However out subsequent electricity bill was shocking, so I started researching ways to insulate our home better such as ceiling insulation and underfloor insulation. This included web research, bouncing ideas off a builder mate and calling about half a dozen insulation providers to discuss our requirements.

The call to Gavin was one of the later calls I made to the insulation providers I had Googled and I was immediately struck by his in-depth knowledge of insulation, his sincerity and his willingness to explain the various insulation options open to us (unlike quite a few of his competitors whose sincerity and knowledge seemed more questionable). He also went above and beyond when it came to helping us choose the best type of underfloor insulation for our needs. Cost was also competitive, so it was very easy choice in choosing Insulvac to insulate our home, and they did a great job.

It's rare to get such a trustworthy service at such competitive rates, so I have absolutely no hesitation in recommending Gavin and his Insulvac team to others, we are very happy.

Richard & Tracy - Lang Street, Croydon

June 30, 2012


Hi Gavin,


The service industry and small business is all about customer satisfaction and client references.  I’m happy to say, you’ve hit your objectives in our mind.  Our house in Mosman is around 100 years old.  Whilst we and many past owners have developed and maintained our wonderful living areas, upstairs in the roof (out of sight out of mind except for a few critters) is another story of 100 years built up dirt, dust, old building materials, old electrical metal conduit & wires, etc etc (plus I don’t want to think about all the possums and vermin we’ve seen in 100 years...yuk).  To think other organizations (we couldn’t call them competitors) simply install insulation over the top of all this pollution etc doesn’t bare thinking about.  Insulvac on the other hand is another story.  After your team of professionals cleared out and removed all the crazy ‘stuff’ that was in my roof, your guys cleaned the roof area like it was new using your amazing heavy duty, high tech custom equipment. Now, we have the comfort of a beautifully clean insulated home thanks to you and your team.  Hey, and thanks also for fixing a bunch of things up in the roof area that needed a licensed builders attention.  Brilliant customer service!


 I’m very happy to be a reference anytime.


 Thanks again


Jim Fisher - Hale Road, Mosman


June 25, 2012





The insulation has made a massive difference to the front of the house – normally after two days like we have had the front would be unbearable.


Thanks for your prompt and efficient service, your guys are hard working and trustworthy – on both days they were left with other tradesmen while we were at work.




Marcus Maraldo - Victoria Square, Ashfield
17 November 2011



Dear Gavin Clarke,


Gavin & Susan (Insulvac), you run an amazing family business. You are reliable, fair in price & have done an excellent job insulating my roof. I am most impressed with your workmanship & would highly recommend your services to anyone wanting a job well done. I have renovated 8 houses & Insulvac is definitely amongst my best trades providers. Thank you for insulating my house so effectively & for also giving me extra advice on improving my property.


Karina Scarf - Deakin Street, Forestville
12 November 2011



Hi Gavin,


I just wanted to let you know what a great job your guys did on Tuesday at our house in Ashbury. I noticed the difference in the air straight away after they finished. I really felt they did a thorough job and was extremely happy with the service from seeing you to when they left.


Thanks so much


Megan - Woodlands Road, Ashbury
25 August 2011



Thanks Susan,


I have to say I was impressed with the promptness and job done today for Stage 1 of our job. It is a real delight to deal with a professional company that takes pride in their business.


I will certainly be recommending you if anyone I know needs the same work done.


Kind regards,


Monica - Macnamara Avenue, Concord 
31 March 2011



Thanks Susan,


Much appreciated. Ray has done a superb job of vacuuming. Now he's working on the insulation.


Catriona - Kenilworth Street, Croydon
23 February 2011





Thanks for the ceiling vacuum and insulation. The guys did a great job, would be happy to recommend you.


All the best for the New Year.


Sam - French Street, Kogarah 
29 December 2010



Thank you so much to the guys – it was very hot and they have done a great job. I will recommend your services to our friends.


Enjoy your Christmas


Kind regards,


Murray & Jill Ward - Nambucca Street, Turramurra
9 December 2010



Hi Susan,


Would you please ask Gavin to thank his men – they did a fantastic job. They were so polite and informative, it was a real pleasure to deal with them.


Extremely professional.




Karen Wright - Eastern Arterial Road, St Ives
22 October 2010



Thank you,


Please thank Gavin and Ray for rearranging things on the day and doing a great job.


Kerri & Tamsin
14 September 2010





Again thanks. We have already noticed the difference.


I will certainly recommend your organisation to our friends/ acquaintances who are looking to have debris removed/ insulation installed.




Leon - Riverside Crescent, Marrickville
20 August 2010



Hello Sue,


Thanks for the finalization of the insulation of our house.


Judy and I are pleased with our dealing with yourself, people who came to do the work and the job overall.


Kindest regards,


Dennis Quinlan - Holborow Street, Croydon 
16 August 2010