Tweed Coast & Northern Rivers

The builder who shows you the plan, the price, and the permit before the first wall moves.

Home extensions, full renovations, kitchens, bathrooms, and outdoor living. One builder, one contract, fixed price.

SDJM
★★★★★4.9 · 74+ reviews

Lic. NSW Lic. 000000C (demo) · Public liability to $20M + Home Building Compensation Fund

Completed home extension on the Tweed Coast with matched roofline and hardwood deck
6yrstructural warranty
Licensed builder · Master Builders Association
Licensed
NSW Fair Trading
Builder's Lic.
NSW 000000C (demo)
Insured
$20M + HBCF
Local
Tweed Coast since 2011
Warranty
6-year structural
Proof, recent work

Recent projects.

Dated single-storey brick home in Kingscliff before ground-floor extension Before
Completed ground-floor extension in Kingscliff with matched roofline and new living area After
Ground-floor extension, Kingscliff, Kingscliff. A 45m2 ground-floor extension with matched roofline and new open-plan living area.
Original galley kitchen with laminate benchtops in Cabarita Beach home Before
Renovated kitchen with stone island bench and custom joinery in Cabarita Beach After
Kitchen renovation, Cabarita Beach, Cabarita Beach. Full kitchen strip-out and rebuild with stone island bench and custom joinery.
Original 1990s bathroom with dated tiles and vanity in Chindera Before
Renovated bathroom with floor-to-ceiling tiles and frameless shower screen in Chindera After
Bathroom renovation, Chindera, Chindera. Full strip-out, waterproofing to AS 3740, floor-to-ceiling tiles, frameless shower screen.
Reviews

What homeowners say.

4.9

Rated 4.9 across 74 Google reviews

Read all 74 reviews

Wall of love

What homeowners say.

★★★★★ 4.9 average 74+ Google reviews

S
Sarah M.
Kingscliff · via Google
★★★★★

“They drew the scope, priced every line, and told us the council timeline before we signed anything. The extension matched the existing roofline so well you cannot tell where the old house ends and the new one starts.”

D
David and Karen T.
Cabarita Beach · via Google
★★★★★

“We got three quotes. Two were verbal, one changed mid-build last time. Buildline gave us a fixed-price contract with every line itemised. No variations, no surprises. The kitchen was done in eight weeks.”

J
James R.
Chindera · via Google
★★★★★

“The waterproofing certificate was in the handover pack, just like they said it would be. The bathroom is beautiful, but knowing the membrane was independently inspected is what actually lets me sleep.”

M
Michelle L.
Pottsville · via Google
★★★★★

“We lived in the house through the whole renovation. They staged it room by room so we always had a kitchen and a bathroom. Disruptive? Yes. But they planned it properly and we never felt forgotten.”

P
Paul and Lisa W.
Fingal Head · via Google
★★★★★

“The deck is Spotted Gum, the pergola has an insulated roof, and the whole thing was done in five weeks. They refused to use treated pine because of the salt air. I appreciate that kind of honesty.”

T
Tom B.
Murwillumbah · via Google
★★★★★

“Our Queenslander needed a kitchen that felt modern without wrecking the character. They matched the VJ panelling in the new section and kept the original casement windows. The council planner actually complimented the plans.”

N
Nicole H.
Banora Point · via Google
★★★★★

“Second storey addition on a 1990s brick home. They brought the engineer in at the scoping stage, not after we had committed. The beam design was included in the fixed price. No extras.”

A
Angie K.
Tweed Heads · via Google
★★★★★

“Our cafe fitout was done in four weeks, after hours, without a single complaint from the body corporate. They programmed everything backwards from our opening date and hit it.”

G
Greg and Sue D.
Tweed Heads · via word of mouth
★★★★★

“They found asbestos behind the bathroom wall. Instead of panicking, they priced the licensed removal, showed us the quote, and got our written approval before proceeding. Professional.”

R
Rachel and Mark F.
Cabarita Beach · via Google
★★★★★

“We compared five builders. Buildline was the only one who drew a scope and showed us the council pathway at the quoting stage. Everyone else just gave a number and said 'we will sort council later'. That is not good enough when you are spending six figures.”

How it runs

What happens next, step by step.

1

Site visit and scope

We visit the property, listen to what you want, measure the existing home, and identify constraints (setbacks, services, soil, flood overlays). No charge for the visit.

2

Drawn plans and fixed price

We draw scaled plans, price every line, map the council pathway, and present a fixed-price contract. You see the plan, the price, and the permit pathway before you commit.

3

Council approval and pre-construction

We lodge the DA or CDC, engage the engineer, the certifier, and any specialist consultants, and schedule the build start date once approval is in hand.

4

Build and handover

One crew builds to the signed plans, on the programmed dates, with progress updates at every milestone. Handover includes a defect walk, certificates, warranties, and a maintenance guide.

Why us

A fixed price that holds to the last day.

What the fixed price locks in, and the variations a cheap quote leaves open.

Your fixed-price lock
  1. 1Site visit and measured scope.We walk the property, measure every room and note every constraint before we price a single line.
  2. 2Drawn plans.Scaled floor plans and elevations showing what gets built, where, and how it connects to the existing home.
  3. 3Council pathway mapped.DA or complying development, expected timeline, fees, and conditions, all explained before you sign the contract.
  4. 4Fixed-price contract.Every inclusion listed, every exclusion named. The price is locked before the first wall moves.
  5. 5Programme with dates.A construction programme with start, key milestones, and handover date, issued with the contract.
  6. 6Variation protocol.Nothing changes without a written variation order, a revised price, and your signed approval.
If the price can move mid-job, it was never a fixed price.

What's locked in

  • Fixed-price contract with every line itemised before work starts
  • Drawn plans and council pathway explained at the quoting stage
  • One team from design through handover, one point of contact
  • Written variation orders with revised price before any change
  • Waterproofing certificate, engineering sign-off, and handover pack

Where the cheap quote moves

  • Verbal quote, "we will sort the price as we go"
  • No plans, "the boys know what they are doing"
  • Different subcontractors every week, nobody in charge
  • Extras added mid-build, invoiced after the fact
  • No certificates, "it will be fine, trust me"
Before you call anyone

Work out the scope, then see the range.

Two free tools. Both run in your browser, store nothing, and end in an on-site walkthrough. Neither is a quote.

Watch this before you book

The questions every customer asks, answered once.

How much does a renovation cost on the Tweed Coast?
It depends on scope, access, and finishes. A bathroom starts around $25,000, a kitchen from $35,000, and a ground-floor extension from $150,000. We publish indicative ranges on the pricing page and give you a fixed price after the site visit.
Do you handle council approvals?
Yes. We manage the full council pathway for every project, whether it is a DA through Tweed Shire Council or a complying development certificate through a private certifier. The pathway, timeline, and fees are explained before you sign.
What does "fixed-price scope" mean?
It means we draw the plans, price every line, and explain the council pathway before you commit. The contract price is the price you pay. Nothing changes without a written variation order and your signed approval.
How far in advance do you book?
We typically book 4 to 8 weeks ahead. The site visit and scoping can usually happen within the week, and the fixed-price contract follows within five business days.
Do you work in Queensland as well as NSW?
We are licensed in NSW. For projects near the border (Tweed Heads, Banora Point, Coolangatta), we can advise on cross-border requirements and refer to a licensed QLD contractor if needed.
What guarantee do you offer?
6-year structural + Home Building Compensation Fund cover. Structural and non-structural items are named in writing, with exclusions listed. HBCF cover is provided on every residential project over $20,000 as required by NSW law.
Where we work

Our service area, suburb by suburb.

8 suburbs across the Tweed Coast & Northern Rivers. No surcharge within 40km of Chindera.

Larger map
Get started

See the plan, the price, and the permit pathway before you commit.

Tell us what you want to change about your home. We visit, draw a scope, price every line, and walk you through the council process before you sign anything.

✓ NSW Fair Trading licensed contractor✓ Insured to $20M + HBCF✓ Master Builders member✓ 74 five-star reviews✓ Fixed-price contract, no variations without written approval
Get a fixed-price scope Call