New Roof Installations in Perth

Here at DSY Roofing Services, we know that a new roof is one of the most significant investments you can make for your home.

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high-quality new roof installations

Based in Perth, Scotland, our experienced team has been delivering exceptional roofing solutions for over three decades, earning the trust of homeowners across the area. Every home is unique and we believe your roof should reflect that. Our approach to new roof installations is tailored to your specific requirements, ensuring the style, materials and finish are perfectly suited to your property. Whether you’re looking for a traditional design or a more contemporary aesthetic, we have the expertise to bring your vision to life with precision and care.

New Roof

Our Roofing Process

Our process begins with a thorough assessment of your home and a detailed consultation to understand your needs. From the beginning, right up to completing the installation, we display expert attention to detail and handle every step with the utmost care. Our team is skilled in working with a wide range of roofing types, ensuring we can meet the demands of any project.

Investing in a new roof doesn’t just provide essential protection against the elements; it also adds value and kerb appeal to your property. We pride ourselves on delivering roofs that not only look fantastic but also perform flawlessly for years to come.

Send Us A Message...
Mr & Mrs Tate
Tillicoultry

"We have used DSY Contractors for a number of jobs and have always found them to be very reliable and their work is of a good standard. They completed the work when they said they would and carried out the job exactly as we requested. They always leave the site clean and tidy and we have always found them to be very reasonably priced."


Bill & Frances
Tillicoultry

"We have used DSY Contractors before and based on their previous work we got them to do a big job repairing our roof and chimneys. As usual they completed it on time at a very good price. David and his team explained everything as they went along and we recommend them very highly."


A. McLuckie
Kennet

"DSY Contractors did a great job. Very professional and completed quickly."


Agnes Morgan
Tullibody

"Very glad I got David and his team to sort out my roof. They did a great job and kept me informed every step of the way."


Graham
Cambus

"Very pleased with the work David and his men did. Very good price as well. Was impressed with their professional attitude towards the job."


Mr. Brunton
Dollar

"I was very happy with their work and they left everything clean and tidy."


Nick Bramhall
Tillicoultry

"DSY were fast to respond to my initial enquiry and completed the required work without a problem. David was very easy to communicate with and I wouldn't hesitate to call him again in the future."


Mr Cadden
Glasgow

"I employed DSY Contractors through the website ratedpeople.com to re-tile the roof of my house. The owner and manager Mr D. Sweeney and his crew followed my instructions as requested and the job was completed to a very high standard with which I was delighted. I would not hesitate to recommend DSY Contractors to anybody else who wants a fantastic job done and I would use their services again."


Simon Pellicci
Alloa

"I'm very happy with the work DSY Contractors have done. They were punctual and tidy and I would re-employ them for any additional work I would need done."


Mr & Mrs Ramsey
Alloa

"They did a great job of our roof as they have done in the past several times. Cannot recommend them highly enough. Reasonable price as well."


Mr Thomas
Alloa

"Mr Sweeney's firm did a cracking job. Excellent workmanship and his workers were polite and informative. Would employ DSY Contractors again."


Mr I Gwynne
Dollar

"Efficient, reliable and reasonable prices. I would recommend DSY Contractors to anyone."


Mr A Stewart
Blairlogie

"DSY Contractors would definitely be employed by us again as their work was first class."


Helen Patrick
Glasgow

"Great job carried out on conservatory roof. Repairs also to main house roof. Thanks for all your help".


  • Residential Homes (Standard): 1 to 7 days for on an average-size house (under good weather conditions).
  • Larger or Complex Roofs: Up to 2 weeks if the roof is steep, multi-level, or requires special materials or repairs.
  • Flat Roofs: 1-3 days, depending on size, access, and material type
  • Weather Delays & Prep Work: Add extra time if you're dealing with bad weather, structural repairs, or material delays.

We handle a wide range of roofing materials to suit every style, budget, and building type, including:

  • Tile Roofing – Clay or concrete tiles for a classic, Mediterranean look.
  • Flat Roof Systems – Including felt, GRP/fibreglass

Slate roofing uses natural stone tiles—split from metamorphic rock—that are laid in overlapping rows. It’s known for its elegant appearance, fire resistance, and incredible lifespan.

Choosing the best roofing material depends on a few key factors—like your building type, local climate, budget, and how long you want it to last.
We handle a wide range of roofing materials to suit every style, budget, and building type.

  • Is your roof flat or pitched?
  • Do you want low maintenance or high durability?
  • Are aesthetics important (e.g. for curb appeal)?

🧹 Tear-Off (Removing the Old Roof)
Pros: Exposes the roof deck so any hidden damage (like rot or leaks) can be repaired.
Ensures a longer-lasting, more secure installation.
Cons: More labour-intensive and costly.
Takes longer to complete.
🧱 Roof-Over (Installing New Roof Over Old One)
Pros: Faster and more affordable—no tear-off or disposal needed.
Adds an extra layer of insulation.
Cons: Can only be done once (most codes allow a max of two layers).
Adds weight to the structure—your roof must be strong enough.
May trap moisture or cover up existing issues.
🛠️ What Most Pros Recommend
If the existing roof is in good shape (flat, no leaks, no rot), a roof-over might be okay. But for long-term durability and peace of mind, a full tear-off is usually the better investment.

Core Components of a New Roof Installation

Tear-Off: Removal of old roofing materials to inspect the underlying structure.

  • Roof Decking: Plywood or OSB base layer; replaced if damaged or rotted.
  • Underlayment: Waterproof barrier (felt or synthetic) that protects against moisture.
  • Drip Edge: Metal flashing at edges to guide water into gutters and prevent rot.
  • Flashing Metal: seals around chimneys, vents, and valleys to prevent leaks.
  • Ventilation: Ridge vents, soffit vents, or box vents to regulate attic temperature.
  • Roof Covering: Tiles or slate—your main weatherproof layer.
  • Guttering: (Optional) New gutters and downpipes to manage rainwater runoff.
  • Cleanup & Disposal: Removal of old materials and debris from the site.
  • Final Inspection: Quality check to ensure everything is sealed, aligned, and up to code.

Curb Appeal: A fresh roof instantly improves your home’s appearance, which can attract more buyers and higher offers.
Buyer Confidence: Knowing the roof won’t need replacing soon gives buyers peace of mind—often leading to quicker sales and fewer negotiations.
Energy Efficiency: Modern roofing materials can improve insulation and reduce energy bills, which is a big plus for eco-conscious buyers.
Avoids Value Loss: Even if it doesn’t dramatically increase value, a new roof prevents your home from losing value due to visible wear or damage.

Covering Plants & Flower Beds:
Moving Outdoor Items
Protecting Windows

Daily Clean-Up & Magnetic Sweeps:
Pre-Job Walkthrough: A good contractor will walk the property with you beforehand to identify delicate areas and agree on protection plans.

  • Soffit vents (or over fascia vents) for intake
  • Dry ridge vent system or ridge vents for exhaust
  • Aim for a 50/50 balance between intake and exhaust.
  • Ventilation is especially important if you have insulation at ceiling level (cold roof design).
  • If your loft is converted or insulated at rafter level (warm roof), you may need breather membranes and tile vents instead.