CSG Plastics & Build -Extension Builders in Lancashire
Transform your Chorley home with a bespoke extension crafted by local extension builders in Lancashire. Create space for family life, work, or entertaining while retaining your property’s character and comfort.
Transform Your Chorley Home with a Bespoke Extension
Is your growing family feeling cramped in your current home? Need a spacious home office, additional bedroom, or larger kitchen? CSG Plastics & Build brings the same exceptional craftsmanship we’re known for in roofline and window installations to create stunning, functional extensions throughout Chorley, Bolton, Wigan, and Preston.
Our expert team handles your entire project from initial design through planning permission to final completion, creating beautiful, energy-efficient additions that seamlessly integrate with your existing property.
Why Home Extensions
Home extensions offer a practical way to gain space without moving. Families choose extensions to add bedrooms, open-plan kitchens, home offices, or flexible living areas. Well-designed house extensions in Lancashire improve daily life, increase property appeal, and can enhance long-term market value. Thoughtful design ensures new spaces work year-round and sit sympathetically with existing architecture.
Why Choose CSG Plastics & Build for Your Home Extension
When you entrust your home extension to CSG Plastics & Build, you’re choosing a local, family-owned business with a reputation for excellence. Our extension projects follow the same principles that have earned us over 175 five-star reviews for our roofline and window installations.
We understand that extending your home is a significant investment, both financially and emotionally. That’s why we take the time to thoroughly understand your needs, preferences, and budget before creating a bespoke design that enhances your living space while complementing your home’s existing character.
Our extensions aren’t just built to look beautiful – they’re designed to perform exceptionally well. We incorporate the latest energy-efficient materials and technologies to ensure your new space is comfortable year-round while keeping energy costs manageable.
CSG took care of everything from design to completion. The team's attention to detail was exceptional, and they kept us informed throughout the entire process. Our new kitchen extension has transformed how we live in our home.
Richard & Kate Morgan
Chorley
Our Extension Services
Our expert team provides full-service solutions across Chorley, Bolton, Wigan, and Preston, delivering carefully planned additions that suit each home.
Single-Storey Extensions
Single-Storey extensions create bright open-plan kitchens, dining areas, or living rooms. We use bifold doors and roof lanterns to maximise light and connect interiors to the garden for enjoyable family living.
Two-Storey Extensions
Two-Storey additions increase floor area with extra bedrooms, bathrooms, or annex-style spaces. Our designs complement existing proportions while adding practical, well-specified rooms for growing households.
Wrap-Around Extensions
Wrap-around layouts combine side and rear additions to form flowing, contemporary living. These schemes link kitchen, dining, and lounge zones into one cohesive space tailored to family routines.
Orangeries & Garden Rooms
Orangeries and garden rooms combine solid construction with extensive glazing. Lantern roofs, brick pillars, and careful detailing produce elegant, comfortable spaces for dining, work, or relaxation that work all year.
The CSG Extensions Process
Our proven process ensures every home extension project is carefully managed from start to finish, balancing quality, functionality, and customer satisfaction with clear communication at every stage.
Initial Consultation
We begin with a home visit to understand your requirements, design aspirations, and budget. This ensures your house extension reflects your lifestyle and provides tailored solutions from the outset.
Design & Planning
Our architectural team prepares detailed drawings, manages planning permissions, and ensures compliance with local regulations. This stage guarantees your house extensions in Lancashire are both practical and visually aligned with your property.
Construction Excellence
Our experienced extension builders in Lancashire deliver construction with precision. From groundworks to finishing touches, we maintain tidy sites, minimise disruption, control dust, and provide clear communication throughout the entire building process.
Quality Assurance
Before completion, our team inspects every detail of your extension, including finishes, fittings, and structural elements. This ensures everything meets our standards of craftsmanship and your complete satisfaction before handover.
Aftercare Support
Our service continues after completion with warranty coverage and helpful aftercare advice. We ensure your new extension remains comfortable, reliable, and functional long into the future with dedicated client support.
Featured Extension Projects
Two Storey Extension
This growing family needed more space and modern amenities to match their lifestyle We delivered a comprehensive transformation with a stunning two-storey extension that significantly expanded their living space adding a stylish kitchen luxurious bathroom two additional bedrooms and an...
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Contemporary Rear extension
This family wanted to transform their kitchen into a more spacious light-filled area for cooking and gathering We extended their existing kitchen by removing the rear wall and installing fabricated steel supports creating an open-concept space that flows seamlessly into...
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Front Garden & Driveway Redesign
This family wanted to transform their outdoor space into a beautiful functional extension of their home We undertook a complete landscaping project that dramatically enhanced both the aesthetics and usability of their garden The installation of elegant Indian stone flagging...
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Benefits of Extending Your Home
A well-designed extension transforms not just your living space but also your lifestyle, adding comfort, functionality, and lasting value to your home.
- Extra space for family living — Home extensions provide versatile new rooms such as kitchens, bedrooms, or studies, designed specifically to suit your family’s evolving needs and daily lifestyle.
- Improved lifestyle — Open-plan layouts, increased natural light, and enhanced connectivity create modern spaces that encourage relaxation, entertaining, and everyday comfort for every member of your household.
- Energy-efficient performance — Our extensions use advanced materials, insulation, and glazing to ensure your home remains energy-efficient, reducing bills and creating consistent comfort throughout the year.
- Long-term value — Professionally built house extensions in Lancashire add aesthetic appeal, market value, and functionality, making your property more desirable and profitable when it’s time to sell.
Why Choose CSG Plastics & Build
We combine design, construction and customer care to deliver quality outcomes for every client.
Family-Run Focus
As a local, family-run team, we listen and tailor every project to your needs, treating your home with respect throughout.
Proven Track Record
Our extension work builds on the craftsmanship that earned us strong reviews for roofline and window projects across Lancashire.
Careful Site Management
We keep work areas organised and minimise disruption through disciplined site practices and clear communication.
Lasting Support
From planning through completion and beyond, our warranty and aftercare ensure confidence in your investment and the longevity of the build.
What Our Extension Customers Say
Ready to Extend Your Home?
If you’re considering a house extensions project, contact our team for a consultation.
Our extension builders in Lancashire will guide you through design, planning and construction to create the space your family needs.
Frequently Asked Questions
About Home Extensions
Many home extensions fall under Permitted Development, but requirements depend on your property. We assess your situation, handle applications, and ensure all planning and building regulations are fully managed.
Project times vary by scope. Single-Storey extensions usually take 12–16 weeks, while two-Storey designs may need 16–20 weeks. We always provide a clear project timeline.
Yes, most clients stay in their homes. We maintain tidy sites, manage dust, and coordinate schedules to minimise disruption. Temporary kitchen setups may be possible when needed.
A well-planned extension typically boosts property value significantly, often between 15–25% locally. More importantly, it immediately enhances everyday comfort, functionality, and lifestyle for your household.
Yes. We help with layouts, lighting, flooring, and kitchen planning when needed. Our design team ensures your new space matches your lifestyle and personal taste perfectly.
We deliver single-Storey, two-Storey, wrap-around, and orangeries. As trusted extension builders in Lancashire, we tailor each design to your needs, property style, and long-term goals.
Our house extensions in Lancashire are designed with energy performance in mind. We use advanced insulation, glazing, and sustainable building methods to reduce energy use and increase comfort.
Yes. We carefully select materials, finishes, and architectural details to complement your property. The result is a seamless extension that looks original to your home.
Yes. Our complete service covers consultation, planning, construction, and aftercare. We manage every stage so you can enjoy a stress-free extension project.
Yes. Beyond project handover, we provide guidance and support. Our aftercare ensures your new space remains functional, durable, and enjoyable long after construction finishes.