cart Shopping Cart SHOPPING CART
FREE* NZ 
 Wide Delivery
icon delivery
 
Unconditionally Guaranteed to Work icon check
 

Testimonials

Over the past week the Association has been contacted by two of your customers who called to convey their gratitude and compliments on the high standard of workmanship and customer service you provided to them.
I would therefore like to congratulate you, this has reflected well on not only your reputation but on that of the Association.

Lorriane Mills. - Executive Officer, Roofing Association of New Zealand. April 1999

The most recent job was on the Auckland Central City Station, it was first class job that attracted plenty of good comment. We can highly recommend this company to any other organisation
Amos Selby.  - Property Manager, NZ Fire Service Northern Region. June 1997


We recently bought 5l from you ,it has worked - now need to do bach !
Richard - Auckland. July 2019

 

Just wanted to let you know how well your Bio-Shield worked on the deck: it is a miracle how clean it is now compared to before when the thick layer of black fungus not only looked bad but caused a few nasty slips and falls. It is almost all clear now with a bit of brushing and the weather.
David - Whitianga. May 2019


I have referred many people to your brand. The best results we ever got was on a property right on the shores of Lake Rotoiti where the house etc were constantly under the shade of trees.
The perfect setting for grunge to grow. An incredible transformation.

Mike - Rotorua. February 2019


Bio-Shield is fantastic. The teak deck on my boat has never looked better. So easy to work with and no adverse effect on other materials. I am now also using it on my house – roof and terrace etc.
Per - Blenheim. November 2018


Wary of an unknown product, Andy answered all my questions. We were ECSTATIC at the effective job Bio-Shield has done removing "green growths" on all our concrete areas in Oct. 2017. Bio-Shield's price based on their dilution rate prices it MORE than favourably against the heavily marketed products at hardware stores. We're confidently back today for our second order to tackle the roofs of our 4,000 sq.ft home.
Alison - Auckland. January 2018

 

Thank you for the work done and the expert roof inspection you did and with the brochure details of the RANZ. You could set you up as an independent roof inspector who people can trust. And increase your fee accordingly than just the Bio-Shield treatment you did for me. There is a desperate need, especially in Auckland, to find honest and trustworthy trades people. As I hear from many!
Jan - Auckland. March 2018


I have used your product for removing lichen and moss from headstones and it works brilliantly. Recommend all monumental masons use your product.
Ian - Maiden Stone Ltd. March 2018

It is really good stuff - my 2nd lot from you, to now go and spray my parents paths.
Charles -  Dunedin. October 2017

hi had reservations about bioshield, having not used the product before.
main reason for buying was you guaranteed it would not harm my clients coloursteel roof.
well the product did not harm the roof and did kill the fungus over time and the roof looks great
nice product guys, will recommend to my other clients

Ric - Whangarei. March 2017
 

Thank you the product arrived and my roof has been sprayed and completed, great price, great service and so easy to use. Cheers
Steve - Waikanae Beach. February 2017


Just thought I should send you an unsolicited note to say how impressed I have been with your product Bio Shield.
Quite apart from use around the home, we have this 120m alloy start structure in lake Karapiro that requires a seasonal spray to keep it in tip top shape.
Worth some $500,000 to replace I can say that 3 weeks after spraying it looks as good as when it was built 8 years ago.  Great and inexpensive product.

Peter. - Karapiro August 2015


Your Bio-Shield is a great product, I bought some a few years ago then threw the empty container out before ordering some more. Therefore I didn’t have your details and I ordered a different product from another supplier by mistake.... Big mistake, it wasn’t a patch on yours. Thanks again.
Tony - Mangawhai. July 2015


G’day, Just thought I'd send you a couple of pictures of how well your product worked on my tile roof. We are very pleased with the result as you will tell from the pictures and have had no problems recommending it to our friends. The before pictures were taken on the 29-7-15 and after 19-3-16  All i did was mix it up and spray it on.
Thanks for the great product.
Warren and Robyn. Gloucester, NSW. March 2016

Found the BioShield at the door this morning - WOW
I would like to thank you very much for this, it really is most appreciated.
As you can probably noticed (if it was yourself who delivered it) I have
large areas of "paved" surfaces which require constant attention.  
I switched to BioShield a couple of years ago and find it the most economical product that I have used to date. Once again many thanks

Phil, Auckland. July 2016


here's some product feedback - that Bio-Shield is bloody marvellous stuff, I wish I'd come across it years ago.
Regards, Ian, Whangarei. March 2016


I was concerned at a lack of progress, I really was. But 8 months later, my terracotta tile roof looks brilliant. Well done. Good product, good value.
Phil. Coorparoo. QLD Lune 2016


Thanks Andy,   It worked extremely well. We will be back for more in the future.
Mark - Auckland. January 2015

Parcel arrived this morning great service and great product thanks.
Lyn - Dunedin. July 2016


Hello Andy, ...very efficient....it's great stuff!!! Thanks
Kathleen - Wellington. June 2016

 
Thanks Andy,  This is the third bottle of Bioshield I've bought and found it to be really effective.
Stephen - Hamilton. August 2015


I didn't think  that Bio-Shield would work on our driveway because we live in the bush in Titirangi but I am thrilled with the results and our clean driveway
Gail. - Titirangi, Auckland, January 2011


I got some bioshield off you a couple of weeks ago to do my driveway in titirangi. I had a few litres of Wet and Forget to use up at the same time so did half with Wet and Forget and half with bioshield. Because of the heavy rains last week I got a result pretty quickly and I cant see any difference in effectiveness of one product over the other.
Darryl. - Titirangi, Auckland, July 2013

Thanks Andy,
You would be the easiest person on the planet to deal with. Appreciate your help and advice and prompt attention.

Denis. -  Kewarra Beach, Queensland, February, 2016



Very impressed with your service - straight up and effective, yet with none of the gimmicky sales BS that I think most people get sick of hearing
Gavin.  - Palmerston North, July 2012
              

The job was carried out to an extremely high standard, totally professional, no fuss, nothing was problem.
This sort of service is without a doubt outstanding and I would have no hesitation in recommending your services and product to any prospective customer.

W Lewis. - Challenge Realty, Auckland.  May 1997

I can highly recommend as can Michaela the use of "BIO SHIELD" as a concrete and roof cleaner.
It works a dream.  This product is also a much cheaper solution to any other similar type cleaner.
I rang and ordered some, it arrived the next day. Michaela had a part of her drive that was extremely infested with mould and such like, she did a 15-1 mix for that area and now it looks like new, like the rest done with a 20-1 mix.

Mike, Rotorua, October 2013

Just wanted to let you know that I followed your instructions for soaking the tipi and the results are very pleasing. On the first day the side that gets the most sun all the mould disappeared and after four days the mould was completely gone all over and has stayed gone to date. Very impressed. Thank you.
Annette, Bay of Islands, Feb 2015


Bio-Shield arrived 7am this morning, great service and great product.
Barrie, Glen Eden, Auckland May 2015



 
SIGNUP FOR EMAIL
Discounts, special offers, new arrivals
 
Email*
ABOUT US
Bio-Shield is a New Zealand owned company based in Auckland.
I have personally developed and used Bio-Shield for over 35 years to successfully remove moss, algae and lichen from just about every exterior surface on domestic, commercial and industrial properties. 
The same high quality product is now available for DIY and commercial use on homes and businesses throughout New Zealand.
We are committed to supplying our customers the best outdoor cleaning product and services at the best price, complimented with the best technical advice in New Zealand.

READ MORE ABOUT US
 
CUSTOMER SERVICE - ADVICE - TELEPHONE ORDERS
7 Days - 7am to 7pm
 
NZ :   0800 800 127 
AU :  1800 236 810
FAQs - Ask Andy®
Instructions For Use