TwinSpring Building Performance and Consulting
Mini Split Heating & Cooling Systems
What Is a Mini Split?
A mini split is a compact, ductless heating and cooling system. It doesn't require the ductwork a traditional furnace or central air system needs, which makes it a fast, minimally invasive install for almost any home. It works as a heat pump: pulling heat into your home in winter and pushing heat out in summer, so one system handles both your heating and cooling needs.
Heating and cooling are two of the biggest ongoing costs of owning a home, and one of the most effective ways to lower both is a heat pump. Sometimes called a MINI SPLIT, TwinSpring Builders installs high-efficiency, even solar compatible systems for homeowners in London, Ontario and surrounding areas, providing year-round comfort while potentially cutting your reliance on the electrical grid. We go beyond conventional HVAC practices by integrating cutting-edge building science principles and passive house design elements into our projects. In doing so, we prioritize features such as optimal orientation, strategic shading, and natural ventilation to minimize the electrical load needed for mechanical heating and cooling systems.
As a Google Guaranteed contractor, you can book with confidence knowing our work meets Google's standards for licensing, insurance, and background screening.
Heating & Cooling Solutions for Any Space
Solar-Compatible Mini Split?
When paired with solar panels, a mini split can run partly or fully on power your home generates itself, lowering your monthly utility bill and reducing your home's carbon footprint, without sacrificing comfort on the coldest or hottest days.
Comfort Exactly Where You Need It
Not every room in your home needs the same heating and cooling. Ductless mini split systems provide independent temperature control, making them the ideal solution for spaces where traditional ductwork isn't practical or where comfort has always been a challenge.
Ideal Applications for Ductless Mini Split Systems:
Garage Heating & Cooling
Turn your garage into a comfortable workshop, gym, or hobby space that you can enjoy all year long.
Finished Basements
Keep your basement warm in the winter and cool in the summer without extending your home's ductwork.
Home Offices
Create a productive workspace with quiet, efficient heating and cooling that's independent of the rest of the house.
Finished Attics
Transform your finished attic into a comfortable living space year-round. Whether it's a bedroom, playroom, home office, or guest suite, a ductless mini split delivers efficient heating in the winter and reliable cooling during the hottest summer months—without the cost and complexity of extending ductwork.
Bedrooms
Eliminate hot upstairs bedrooms in summer and cold bedrooms in winter with room-by-room climate control.
Home Additions
Adding a new room? Mini splits provide an affordable heating and cooling solution without major renovations.
Cottages & Seasonal Properties
Efficient, reliable comfort for vacation homes and seasonal properties with low operating costs.
Why Homeowners Mini Splits
Rebates & Incentives
Service Area
We install solar-powered heat pumps and mini split systems throughout London, Ontario and surrounding communities, including St. Thomas, Strathroy, Mount Brydges, Delaware, Dorchester, Thorndale, Komoka, and Ilderton.
Frequently Asked Questions
Will a mini split work in the winter? Yes. Modern cold-climate heat pump systems are designed to heat effectively even in freezing temperatures, making them a reliable year-round solution in Southwestern Ontario.
How long does installation take? Most single-zone installations are completed in a day, with minimal disruption to your home since no ductwork is required.
Are there rebates available? Rebate programs change frequently. We'll review current federal and provincial options with you during your free consultation to see what you may qualify for.
Do I need solar panels already installed to get a mini split? No — a mini split can be installed on its own and still offers major efficiency gains over older heating and cooling systems. If you have or plan to add solar panels, the system can be configured to draw from that power source.
Ready to Lower Your Energy Bills?
Book your free consultation with a Google Guaranteed contractor and find out if a solar-powered mini split is right for your home.
Call 519 694-2403 or fill out the form below.
Heat pump rebate programs in Ontario are frequently updated at both the federal and provincial level, and eligibility depends on your specific home, heating type, and current program status. Often times the suppliers themselves run rebate programs. Rather than quote figures here that may be outdated by the time you read this, we stay on top of active programs and will walk you through exactly what you may qualify for during your free consultation — no guesswork, no outdated numbers.
Ask us about current rebate eligibility when you book your consultation.
Why Homeowners Trust TwinSpring for This Work
Google Guaranteed — vetted, licensed, and insured to Google's standard
30+ years of experience in residential construction and home systems
Local, London-based team — not a call centre or national franchise
Straightforward, honest quotes — no pressure, no hidden costs
One point of contact from consultation through installation
How It Works
Free Consultation — We assess your home, existing systems, and goals.
System Design — We recommend the right mini split configuration and, if applicable, how it integrates with solar.
Installation — Our team completes the install with minimal disruption to your home — most installs take a single day.
Walkthrough — We show you how to operate and maintain your new system before we leave you to enjoy your new space comfortably.
Brett walked us through the entire process, from assessing and sizing the system, to install, to post install service. He was super friendly, knowledegable and obviously enjoys his work. Highly recommend!
Derrick McIntyre - Customer, London Ontario.
★★★★★
Commitment
Exceptional service, personalized solutions, professionalism, care, vision, top-quality
People
Results
brett@twinspringbuilders.com
519 694-2403
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