Blackline Mastic
Accepts Checkatrade Pay
Skills
- Mastic Sealant
Customer Reviews
Write a review9.97 /10
Based on 10 reviews over the past 12 months
Quality of work
10
Reliability
10
Communication
9.9
Reviews (10)
10 Mastic Sealant
Posted 24 October
Great sealant work and a tidy finish
Ion did a great job with the sealant work. The finish was neat, and he worked cleanly and left everything tidy. Very happy with the result and would recommend him.Verified reviewerJob location: CR7RAziz B10 Mastic Sealant
Posted 15 September
They're great
Excellent, sent the request on Sunday, by the same day I had a quote with everything explained, by Tuesday the work was done, competitive pricing compared with other contractorsJob location: E3REdward Z10 Mastic Sealant
Posted 12 June
Shower room, toilet, sink and floor edges resealed
Ion was excellent. Kept me fully informed throughout including arrival time and any traffic delays. Polite, courteous and did the job very well indeedVerified reviewerJob location: TW1110 Mastic Sealant
Posted 27 March
Had my shower resealed.
Punctual, courteous, neat and tidy, and a very professional jobVerified reviewerJob location: DA7RRobert G10 Mastic Sealant
Posted 21 March
Replacing bathroom sealant
Excellent service, I appreciated that they could come on a Saturday. The contractor was friendly and professional and did an excellent and efficient job.Verified reviewerJob location: CR0RDavid J9.67 Mastic Sealant
Posted 11 March
First class tradesman.
What I want from a tradesman is that they turn up on time and complete the task as agreed. And this is exactly what BLACKLINE did. Made a couple of small suggestions that I'd missed. Excellent job, definitely recommend Ian.Job location: E6
Photos
Company Info
Owner
Mr Ion leahu
Sole Trader
Member since 2026
VAT Registered
No
Blackline Mastic – Professional Sealant Specialists
Blackline Mastic provides expert mastic and sealant services across the UK, with over 5 years of experience delivering clean, durable, and professional finishes.
We work on residential, commercial, and industrial projects, using high-quality, mould-resistant sealants to ensure long-lasting results on every job.
Our Services
- Bathroom & shower sealant (leak prevention & mould resistance)
- Kitchen worktops & floors
- Window & door frames (internal & external)
- Expansion joints
- Skirting boards & flooring
- External sealing for buildings and masonry
All work is completed with precision, clean lines, and attention to detail.
Why Choose Blackline Mastic?
✔ Over 5 years’ experience
✔ Reliable, punctual & professional
✔ Premium quality sealants used
✔ Clean, tidy workmanship
✔ Residential, commercial & industrial work
✔ UK-wide coverage
Get in Touch
Whether you need sealant for a new build, renovation, or repair, Blackline Mastic offers a reliable, hassle-free service you can trust.
Blackline Mastic – Quality Sealing, Done Right.
Accreditations and awards
