The best roof replacement in Whangarei teams strip a tired roof back and re-clad it in Colorsteel longrun or pressed metal tile, specified for Northland’s coastal wind, salt and high UV. Whether you are converting an old tile roof to longrun, replacing rusted iron on a rental, or re-roofing a commercial building, these are the Whangarei roofers who handle full replacements rather than patch repairs. Top Cat Roofing and Douglas Roofing are among the operators covered below.
1Top Cat Roofing
Top Cat Roofing is a family owned Whangarei roofing company that has been working on Northland roofs since 2009, with every job overseen by a Licensed Building Practitioner. Roof replacement is its core residential work, covering Colorsteel roof replacement and the conversion of older tile roofs to longrun. It suits homeowners who want a full re-roof handled end to end, from the quote through to spouting, flashings and skylights.
Services
- Residential Colorsteel roof replacement
- Converting tile roofs to Colorsteel longrun
- New home roof installation
- Colorsteel wall cladding installation
- Colorsteel and Marley spouting and fascia
Highlights
- Roofing Whangarei homes and businesses since 2009
- Every job overseen by a Licensed Building Practitioner, so the roof is signed off by someone accountable
- Active member of the Roofing Association of New Zealand
- Workmanship warranty on all new work, alongside material warranties running up to 50 years on some systems
- Licensed Colorsteel installer and experienced installer of Velux skylight windows
Location & Contact
Name: Top Cat Roofing
Address: Whangarei
Phone: 0800 867 228
Website: topcatroof.co.nz
2Douglas Roofing
Douglas Roofing has been locally owned and operated in Whangarei since 1998, and Johny Stone and Georgie Whittaker took over the business in 2023 after several years working in it. The team handles roof replacement and repairs alongside new build roofing, wall cladding and rainwater systems across Whangarei and Northland. It suits anyone still weighing repairs against a full replacement, since the roof is assessed first to work out which is the better spend.
Services
- Roof replacement and roof repairs
- Pressed metal tile and longrun roofing for new builds
- Metal tray roofing systems
- Colorsteel wall cladding installation
- Spouting, guttering, downpipes and fascia
Highlights
- Locally owned and operated in Whangarei since 1998
- Owner Johny Stone is a Licensed Building Practitioner, and the roofers are NZQA qualified or working through their apprenticeships
- Works with Gerard Roofing, Metalcraft roofing and Steel & Tube Whangarei
- Free, no obligation measure and quote, and coverage out to One Tree Point, Waipu, Ruakākā, Tutukaka, Whangarei Heads and Dargaville
Location & Contact
Name: Douglas Roofing
Address: Whangarei
Phone: 027 892 7770
Website: douglasroofing.co.nz
3Apex Roof ‘N’ Clad
Apex Roof ‘N’ Clad works out of Port Whangarei on roofing and cladding for commercial developments, architectural homes and full residential reroofs across Northland. Replacement work is installed in Colorsteel longrun and Gerard pressed metal tiles chosen for coastal, high wind and high UV zones. It suits owners of larger or architecturally complex roofs, and builders who want an installer used to working alongside architects and project managers.
Services
- Full residential reroofs in Colorsteel longrun and Gerard pressed metal tiles
- Architectural roofing and cladding in standing seam, tray and rib profiles
- Commercial and industrial roofing, including roof overlays and warm roofs
- Continuous fascia and spouting rolled on site in Colorsteel and copper
Highlights
- Licensed Building Practitioners on the installing team
- Member of the Roofing Association of New Zealand
- Registered Master Builders
- SiteWise Gold certified contractor
- Runs its own continuous fascia machine and several continuous spouting profiles, so fascia and spouting are rolled on site to fit the roofline
Location & Contact
Name: Apex Roof ‘N’ Clad
Address: 112 Port Road, Port Whangārei, Whangarei
Phone: 09 438 2496
Website: roofingwhangarei.co.nz
4John Duff Roofing
John Duff Roofing has been roofing in Whangarei and wider Northland for more than 30 years, and Luke Hardwick took the company over when John Duff retired, having worked alongside him since 2008. Re-roofing sits at the centre of the business, replacing old roofs in COLORSTEEL longrun or Gerard metal tiles, with overlays offered where a full strip is not required. It suits homeowners with a tired iron or tile roof who want an overlay costed against a full replacement before deciding.
Services
- Re-roofing and full roof replacement
- New COLORSTEEL and Gerard metal tile roof installation
- Roof overlays
- Leak and storm damage repairs
- Spouting and gutter installation and repairs
Highlights
- More than 30 years servicing Northland
- Luke Hardwick has over 20 years in the roofing trade and joined the company in 2008
- Member of the Roofing Association of New Zealand
Location & Contact
Name: John Duff Roofing
Address: Whangarei
Phone: 027 478 4459
Website: whangareiroofer.co.nz
5GT Roofing Ltd
GT Roofing is a small, locally owned team with over 13 years in the roofing industry, working throughout the greater Whangarei region. The company specialises in longrun Colorsteel and Zincalume and does not work in tiles, so it suits a straight iron re-roof rather than a tile replacement. Replacement roofing sits alongside new roofs and repairs as one of its headline services, and the team can arrange scaffolding and quote insurance work.
Services
- Re-roofs and replacement roofing
- New roof installation
- Spouting, downpipes, internal gutters and metal or PVC spouting
- Wall cladding, including window and door flashings
- Skylight and chimney flashings, and replacing old timber fascia
Highlights
- Over 13 years in the roofing industry
- Fully qualified and LBP licensed roofers
- Specialises in longrun Colorsteel and Zincalume rather than tile systems
- Can arrange scaffolding, quotes insurance work, and offers supply and fit or labour only
Location & Contact
Name: GT Roofing Ltd
Address: Parahaki, Whangarei
Phone: 021 114 0486
Website: gtroofing.co.nz
Roof Replacement in Whangarei at a Glance
| Business | Based in | Highlight |
|---|---|---|
| Top Cat Roofing | Whangarei | Roofing Whangarei homes and businesses since 2009 |
| Douglas Roofing | Whangarei | Locally owned and operated in Whangarei since 1998 |
| Apex Roof 'N' Clad | Port Whangārei | Licensed Building Practitioners on the installing team |
| John Duff Roofing | Whangarei | More than 30 years servicing Northland |
| GT Roofing Ltd | Whangarei | Over 13 years in the roofing industry |
How to Choose the Right Roof Replacement in Whangarei
- Check the roofer holds a Licensed Building Practitioner licence, and ask which named practitioner will oversee and sign off your job
- Match the material to the site, because a salt laden roof at Whangarei Heads or Bream Bay needs a different specification from an inland roof at Kamo or Maunu
- Ask whether the quote is a full strip and re-roof or an overlay across the existing roof, and who removes and disposes of the old material
- Confirm who arranges and pays for scaffolding, and whether the price covers spouting, fascia and flashings or only the roof sheets
- Get both the workmanship warranty and the material warranty in writing, and check the installer is licensed by the material supplier for that system
Frequently Asked Questions About Whangarei Roof Replacement
How much does a roof replacement cost in Whangarei?
None of the roofers here publish fixed prices, because the cost turns on the roof area, the pitch and complexity, site access, the material chosen, and whether scaffolding, spouting, fascia and flashings are included. A tile to longrun conversion also costs differently from a like for like iron replacement, since the substrate usually needs reworking. Every company listed above quotes free, so it is worth getting two or three written quotes that spell out exactly what is and is not included.
Do I need building consent to replace a roof in Whangarei?
Straight like for like roof replacement often falls within the exempt building work rules, but the exemption is narrower than people expect. Changing the roof material, altering the weight the structure carries, or touching structural framing can all push the job into consent territory. Check the exemptions guidance on building.govt.nz and confirm with Whangarei District Council before work starts, and ask your roofer to confirm in writing which route the job is taking.
What is the difference between a roof overlay and a full re-roof?
A full re-roof strips the existing roof off, allows the framing and purlins to be checked and corrected, then fixes a new roof down. An overlay lays new material across the roof that is already there, which is faster and cheaper but hides whatever is underneath and adds weight. Several Whangarei roofers, John Duff Roofing and Apex Roof ‘N’ Clad among them, offer overlays, so ask for both options costed before you decide.
Which roofing material suits Whangarei’s coastal conditions?
Coastal Northland is a severe environment for metal roofing, with salt spray, driving rain and strong UV all shortening the life of the wrong specification. Colorsteel longrun and pressed metal tile systems both come in grades intended for marine and severe zones, and the correct grade depends on how close the property sits to breaking surf or tidal water. A roofer who works the coast regularly will specify to the zone rather than to a standard product.
How long does a roof replacement take?
A straightforward residential re-roof is usually a matter of days rather than weeks once the crew is on site, though scaffolding, weather windows and material lead times often stretch the calendar around it. Complex architectural roofs, commercial buildings and jobs that uncover rotten framing take longer. Ask for an indicative start date and duration in the quote, along with what happens if rain interrupts the work while the roof is open.
Should I use a Licensed Building Practitioner for a re-roof?
Roofing is one of the licence classes covered by the Licensed Building Practitioner scheme, and using a licensed practitioner gives you someone accountable for the work and its compliance with the Building Code. Every company listed on this page states that it works under Licensed Building Practitioners. You can look up any practitioner and confirm the licence class on the public register at lbp.govt.nz.
Can a roof replacement be done through an insurance claim?
Storm damage, impact damage and some sudden failures are commonly handled as insurance work, whereas a roof that has simply worn out is treated as maintenance and falls to the owner. GT Roofing quotes insurance work directly, and other roofers here will write reports and quotes for an assessor. Get the roof inspected and documented before anything is removed, because once the old material is off the evidence goes with it.
What happens to my house while the roof is off?
Roofers normally strip and re-cover in sections so the building is closed in each night, and reputable crews plan the sequence around the forecast. Ask how the old iron or tile is stacked and removed, whether ceilings and insulation are protected from dust, and what the plan is if heavy rain arrives mid job. It is also worth confirming site tidiness and nail sweeps at the end of each day, particularly with children or animals on the property.
How We Chose the Best Roof Replacement in Whangarei
Every business in this guide was found by searching for roof replacement in Whangarei, then checked against its own website. Names, addresses and phone numbers are taken from the business’s own site rather than a directory feed, so what you see here is what they publish themselves. We also check that each one is actually based in or genuinely serving Whangarei, rather than a national operator running a local landing page. A business with no website of its own is not listed, because there is no primary source to verify it against.