Hartford, Connecticut's Local Insurance Agency for Auto, Home, Health, and Commercial Coverage

Spectrum Insurance: Your Local Connecticut Agency for Affordable Coverage

25+

Insurance Carriers

5.0

Google Rating

400+

Happy Customers in CT

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We Cover Cars, Homes, Health – and Your Sanity

At Spectrum Insurance, we believe coverage should be simple, affordable, and stress-free. That’s why we offer a wide range of policies to protect what matters most – your car, your home, your health, and your business. With access to 25+ trusted insurance carriers across Connecticut, we work tirelessly to find the best coverage at the best price for you. Whatever life throws your way, we’ve got you covered (and we promise to keep it as painless as possible)!

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Auto Insurance

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Homeowners Insurance

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Life & Health Insurance

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Commercial Insurance

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Trusted by Connecticut Businesses

"Always professional, friendly, reliable, and always finding the best pricing for us, Spectrum will always be my go-to for insurance."


- Sarah Poulin, VP of Jacob Roger Poulin Foundation

Who We Are

Our Mission

At Spectrum Insurance, our mission is simple: to provide personalized insurance solutions that protect your family, business, and future.

Why Choose Us

We're not just another insurance agency. We take the time to listen, understand your situation, and find the best coverage to fit your lifestyle or business.

Local Expertise

We're proud to call Connecticut home, and we're dedicated to serving our neighbors. Our local knowledge means we understand the challenges and needs of individuals and businesses in our area.

Our Promise

At Spectrum Insurance, we put people first. Whether you’re filing a claim, reviewing your coverage, or looking for advice, we promise to provide honest guidance and exceptional service every step of the way.

What People Are Saying

Real stories from clients who trust us to protect what matters most."

5-stars

I am thrilled to have Mark as my agent for my car, renters, and soon to be Medicare Part B plan coverage. He always answers the calls, questions, and weighs what scenario serves me the best. I would highly recommend Mark and Spectrum Insurance LLC to anyone who is seeking insurance from a qualified, friendly, and well-versed agent such as Mark Castelhano.

-Lorraine

5-stars

"Mark takes care of my family and my business. He is professional, honest, takes the time to answer all my questions, researches the best options for insurance bundles for us. For example, I've tried to price match his insurance packages and other are never able to beat his price for the quality of coverage he offers.

-Farmington Valley Physical Therapy

5-star

“Mark at Spectrum made changing our car and home insurances easy and seamless. He was very responsive, professional and knowledgeable. We have never regretted becoming part of the Spectrum family. Any questions are immediately replied to and any requests for changes or assistance are immediately taken care of.”


-Jessica

5-stars

“Mark genuinely cares about our family needs. He has always been responsive and goes out of his way to listen. He has helped a bunch of my family and friends. I have always heard the best of feedback. He advocates for us and has "got our backs" covered...not just with insurance, but also with lots of great wisdom. We feel like extended family.”

-Miguel from SunPower

Our Guy, Your Advocate:

Mark Castelhano

“Growing up, I watched my dad, Tony, run his insurance agency with a dedication that went beyond business. The biggest lesson he taught me? Treat people with respect, and make service your top priority. It's not just about policies; it's about being there when people need you most. I’m grateful for those early lessons—they’re at the heart of everything we do here at Spectrum Insurance.”

Let's take the stress out of insurance. Start your quote today.

Insurance doesn’t have to be complicated. We make it simple, so you can focus on what matters most.

Recent Blog Posts

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July 9, 2025
Confused about what auto insurance covers in Connecticut? Learn about state minimums, optional coverage, and why raising limits could protect you better.
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"Do I Have the Right Insurance in Connecticut?” Here's What You Should Know in 2025

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Wondering if your insurance coverage in Connecticut is still right for you? Here's how to tell, what’s changing in 2025, and expert insight from Spectrum Insurance.
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Got Questions? We’ve Got Answers

Insurance can be confusing, but it doesn’t have to be. Check out some of the most common questions we hear and get the clarity you need to make the right decisions.

  • What types of insurance does Spectrum Insurance offer?

    At Spectrum Insurance, we’ve got you covered from every angle—literally. We offer auto, home, renters, life, health, and commercial insurance. Whether you’re protecting your car, your business, or your family, we’re here to find the right fit for your needs.

  • How do I get an insurance quote from Spectrum?

    Getting a quote is simple and fast. You can call us, fill out our online form, or swing by our office if you’re feeling old-school. We’ll ask a few quick questions and get you the best options in no time.

  • Can I bundle my auto and home insurance policies?

    Absolutely! Bundling your policies is a great way to save money and simplify your life. We’ll help you bundle auto, home, renters, or other policies to maximize your discounts.

  • What’s the difference between full coverage and liability insurance?

    Liability insurance covers damage you cause to others, while full coverage includes liability PLUS protection for your own car (like collision and comprehensive coverage). Not sure what you need? We’ll break it down for you.

  • How can I lower my insurance premiums?

    Great question! Discounts are everywhere—you just need someone to find them. Safe driving, bundling policies, installing safety features, or even raising your deductible can all lower your premiums. Let us help you save.

  • What should I do if I’m in a car accident?

    First, make sure everyone is safe. Then call us. We’ll guide you through every step of filing a claim, from documenting the damage to working with the insurance adjuster. You’ve got enough to worry about—we’ll handle the rest.

  • Do I really need renters insurance?

    If you value your stuff, yes. Renters insurance is affordable and covers your belongings from theft, fire, or other unexpected events. It can even include liability coverage if someone gets hurt in your rental.

  • Do I need business insurance if I’m an LLC?

    Yes, you probably do! While an LLC protects your personal assets, it doesn’t cover everything. Business insurance can protect your company from liability claims, property damage, and other risks that could hurt your business financially. Think of it as the safety net for your safety net.  Chat with an insurance professional to determine what's best for your business.

  • Does Spectrum Insurance sell its own insurance policies?

    Nope! We’re an independent agency, which means we don’t sell our own policies. Instead, we work with a variety of top carriers to find the best coverage and rates for you. Think of us as matchmakers for your insurance needs—we pair you with the policy that fits you best.