Most common cause
Water damage
A slow leak from a burst pipe, roof tile displacement, or an upstairs bathroom overflow saturates the plaster from above. Sagging + brown staining + soft-to-touch = water damage. Fixed with cut-out + replace + skim.
✓NSW Fair Trading Licensed🛡2-Year Written Guarantee📝Fixed-Price Quote in 24 Hours
Water Damage Ceiling Repair, SydneyBrown stain, sagging plaster, storm leak — your home safe again.
- ✓Get a fixed-price quote within 24 hours.
- ✓We deal with your insurance company directly.
- ✓Most water-damage repairs completed in one visit.
- ✓Backed by our 2-year written workmanship guarantee.
- ✓Call Jack now — sagging-ceiling emergencies answered within 1 hour.
Or use the 3-field form → Quote at your door within 24 hours.
Fixed-price quote within 24 hours
3 quick fields. Jack calls you back within 24 hours.
✓NSW Fair Trading Licensed
✓$20M Public Liability Insured
✓2-Year Guarantee · Brand-Backed
✓1-hour emergency response
✓Insurance liaison included
✓2-year written guarantee
✓NSW Fair Trading licensed
Northern Beaches local
Jack — your plasterer
Meet Jack
The plasterer who actually shows up.
If three plasterers have ghosted you this week, I get it. G'day — I'm Jack. I run Jack's Plastering Northern Beaches. I'm a NSW Fair Trading licensed plasterer based on the Northern Beaches, serving homeowners and landlords Sydney-wide. Fixed-price quotes, no hidden extras, most jobs finished in one visit, and every job comes with a 2-year written guarantee. If something's not right, I come back and fix it.
- ✓NSW Fair Trading licensed plasterer
- ✓Northern Beaches local · Sydney-wide service
- ✓2-year written guarantee on every job
- ✓Fixed-price quote at your door within 24 hours
How it works
Three steps. We handle the insurer. You stop worrying.
1
Call Jack — or fill in the 3-field form
For sagging or actively-leaking ceilings, call straight away — we respond within 1 hour across Sydney. For everything else, fill the form and Jack rings you back within 24 hours.
2
Same-day or 24-hour quote at your door
Jack inspects the damage, documents it for your insurer (photos + measurements), and gives you a fixed-price written quote on the spot.
3
We do the repair AND deal with your insurer
Most water-damage repairs are completed in one visit. We co-ordinate timing with your assessor and send them everything they need. You don't chase anyone.
Recent water-damage repairs
A few of Jack's recent insurance and direct-pay jobs across Sydney.
Manly
Burst-pipe ceiling section + cornice
Insurance job — restored in 2 visits
Dee Why
Storm-damaged ceiling, sagging plaster
Same-day inspection, fixed in 3 days
Mona Vale
Brown stain + skim coat, paint-ready
One visit, 4 hours, done
Sagging ceiling? Water damage is common — but not the only cause.
A ceiling that's bowing, dropping, or has soft spots is a safety issue regardless of cause. Here's the diagnostic path Jack works through on-site — and why the fix depends on it.
Age-related, ~30+ year homes
Plasterboard failure
Old plasterboard (pre-1990 Sydney builds) loses structural integrity from decades of thermal cycling. Sagging without staining, particularly in central ceiling areas away from moisture sources. Fixed with cut-out + replace with modern gyprock.
Pulls adjacent plaster with it
Cornice detachment
When old cornices lose their bond to the wall-ceiling junction, they pull the adjacent plaster down as they fall. Sagging along the cornice line but NOT in the room centre. Fixed by re-bonding or replacing the cornice + repairing the pulled plaster.
Undersized ceiling screws
Fixings failure
Cheap or undersized ceiling screws lose their grip over time, especially in older gyprock. Ceiling sags between screw lines but stays attached. Fixed by adding correct-gauge screws on 200mm centres + skimming the screw heads.
⚠️ When to call urgently
Any of the following = 1-hour emergency response, not a next-day quote: visible plasterboard cracking around the sag, the sagging area is over 500mm across, active water leaking through, or the ceiling has already dropped more than 20mm below the surrounding surface. Call (02) 5500 1608 immediately.
Not sure which cause you're dealing with? Send Jack a photo through the quote form or call for an on-site diagnosis.
Costs: sagging ceiling repair typically runs $600 to $2,500 depending on cause, sagging area size, and whether cut-out replacement or re-bonding is needed. See the full breakdown on the plastering cost guide.
The after state
Picture your ceiling, ten days from now.
The brown stain — gone.
The sag — gone.
The worry that it might come down on the kids — gone.
Your ceiling restored. Your home safe again. Your insurance sorted.
That's what we build for you. Fixed price, insurer-liaison included, 2-year written guarantee.
What Sydney homeowners say
Real reviews from real Jack jobs. (Replace placeholders pre-launch with verified Google reviews.)
★★★★★
“Burst pipe upstairs trashed our ceiling. Jack arrived same day, photographed everything for the insurer, and had the whole ceiling restored within the week. The insurer dealt with him directly — we didn't chase anything.”
Sarah M.
Manly · Verified customer
★★★★★
“Storm cracked the ceiling open. Jack responded in under an hour. Restored it in two visits and the room looks like nothing happened. 10/10.”
David K.
Dee Why · Verified customer
★★★★★
“Brown stain spreading after a roof leak. Texted on Tuesday, quoted Wednesday, fixed Friday. Easy.”
Rachel B.
Mona Vale · Verified customer
2yr
Your ceiling. Safe again. For 2 full years.
Every water-damage repair is backed in writing for 2 full years. If the work cracks, sags or fails because of our craftsmanship — Jack comes back and fixes it free. No paperwork hassle. No excuses. Backed by Jack's Plastering Northern Beaches.
Guarantee terms supplied with your written quote.
Sagging ceiling? Don't wait. We respond within 1 hour.
Insurance job or direct-pay — fixed-price quote, insurer-liaison included.
Water-damage ceiling repair — your questions
The questions we get most often before quoting a water-damage job.
How much does water damage ceiling repair cost in Sydney?
Most water-damage ceiling repairs sit between $600 and $1,500 — section replacement, skim coat, paint-ready finish. Larger jobs (full ceiling replacement after a major leak) start around $2,200. Smaller jobs (single stain, surface repair) start around $290. Every quote is fixed-price and written before we start.
Do you deal directly with my insurance company?
Yes. We provide quotes formatted for insurance assessors, document the damage with photos, and coordinate timing directly with your insurer. Just tell us at the quote stage it’s an insurance job.
My ceiling is sagging — is that dangerous?
A sagging or bubbling ceiling holding water is a real safety risk — it can collapse without warning. Evacuate the room, don’t poke or touch it, and call us. We respond to sagging-ceiling emergencies within 1 hour across Sydney.
How long does water-damage repair take?
Most jobs are completed in one visit (3–6 hours). If the area needs drying time before plastering, we may need a second visit 24–48 hours later. We tell you up front before booking.
What if the repair fails or cracks?
Our 2-year written workmanship guarantee covers any cracking, sagging or finish failure caused by our work. Jack comes back and fixes it free.
Are you NSW Fair Trading licensed?
Yes — Jack is a NSW Fair Trading licensed plasterer. His licence number is provided in writing with every quote, and you can verify it directly at service.nsw.gov.au.
Can the water damage cause mould?
Yes — wet plasterboard left untreated grows mould within 24–72 hours. If your ceiling has been wet for more than a day, mention it on the call so we plan the repair (and any drying / treatment) accordingly.
How quickly can you come and quote?
For water damage and sagging ceilings we target same-day inspection across Sydney. Standard fixed-price quote is at your door within 24 hours of your call.
Other Plastering Services in Sydney
Whatever your plastering job — patch, ceiling, cornice or full home — Jack covers it across the Northern Beaches and Sydney-wide.
Ceiling Repair Sydney →
Cracked, sagging or water-stained ceilings, repaired in one visit.
Plaster Hole Patch →
TV bracket holes, doorknob dents, DIY rescues from $290 fixed.
Plaster Crack Repair →
Wall + ceiling cracks diagnosed and fixed for good, not just skimmed.
Cornice Repair Sydney →
Modern and heritage Federation cornice repair and replacement.
End of Lease Plaster Repair →
Multi-hole bundle pricing. Paint-ready same day. GST invoice.
Storm Damage Ceiling Repair →
1-hour emergency response across Sydney. Insurance handled.
Ready to get your ceiling — and your home — safe again?
Two ways to reach Jack. Pick whichever's easiest. Fixed-price quote at your door within 24 hours. Insurance-liaison included.
📞 Call Jack now
(02) 5500 1608 · Sagging ceilings answered within 1 hour
📝 Or use the 3-field form →
Jack calls you back within 24 hours
- ✓ Fixed-price written quote — no hourly rates
- ✓ We deal directly with your insurance company
- ✓ 2-year written guarantee
- ✓ NSW Fair Trading licensed plasterer
Fixed-price quote within 24 hours
3 quick fields. Jack calls you back within 24 hours.
📞CALL JACK NOW ON (02) 5500 1608
For your FREE plastering quote