Whether it is a roof refurbishment, Restoration of a historic building or an upgrade of an existing carpark structure or simple maintenance and repairs Asphaltech will be there to provide the best advice and system around.
Ensure you have a long term. Roof and Deck Maintenance Programme to enhance the longevity of your roof.
Regular maintenance is essential for prolonging the life of your roofing systems. We recommend conducting inspections once a year—ideally in autumn—and after severe weather events. Our inspection process includes:

- Checking that roof outlets are functioning properly and not blocked.
- Removing debris while ensuring that silt or leaves are not flushed down the outlets.
- Evaluating the condition of waterproofing finishes and addressing any damaged areas promptly.
- Inspecting roof light domes and kerbs for signs of wear or damage.
- Examining all perimeter details, including metal capping’s, flashings, and mortar pointing.
- Ensuring that mastic seals are intact and performing repairs, as necessary.
- Assessing walkways and access points to prevent any damage or displacements.
Our team of qualified professionals carries out all repair work, adhering to industry standards for safety and effectiveness.
Preventative Maintenance Plans
A proactive maintenance plan is vital for the long-term performance of any roofing system. By engaging in regular inspections and maintenance, property owners can avoid unexpected leaks and costly repairs in the future. We help clients develop tailored maintenance plans that suit their specific needs and budgets. For new builds, as part of your warranty a regular maintenance plan should be included.
Assessing Maintenance and Outcomes
Asphaltech have provided advice and maintenance and repair top many commercial and residential roofs in New Zealand offering advice based on the condition of the existing roof. Our advice is critical to the overall spend and solution to fix the issues. The assessment and product selection are critical for the long-term solution of the product.
Complete Roof Refurbishment?
With a wealth of knowledge and experience of different waterproofing products and systems that can be applied to existing structures. You can be sure Asphaltech will provide you with the best system and outcome there is to enhance your existing flat roof area providing a new lease of life and strong waterproofing warranties that will provide over 20 years of cover.
We have found there is not a 1 stop product or solution to ever roof upgrade and working with Asphaltech we will provide the best outcome for your situation. During the investigations period could be a host of issues that is encountered such as asbestos. Multiple layers, incorrect falls and water ponding issues. The client or building manager may have existing tenants not wanting disturbed by the building owner to cost restraints. We can work through this with you and put you in the right direction.
St Andrews Church Roof Restoration
We advised and came up with solutions and outcomes for the St Andrews Church
TVNZ Roof Restoration
We are currently upgrading the existing building of the TVNZ have a look at what we are doing.
Leaking gutters?
Asphaltech were called to advise on an existing old membrane gutter at the Devenport Naval base this is one on many projects we have been involved with in the Navey base. The existing gutter was to remain as was the oild metal roof The only option was a fleece back single ply overlay and using PVC cpoated metal to detail the areas we could not reach.
Long term Maintenance and Repair
One of our longest maintenance works have been on the Auckland war memorial museum where we have carried out extensive repair and maintenance of the existing roof for 20 years now.
Speak to Asphaltech today for a basement to roof waterproofing solution.
Call 09 475 9725