
Website, SEO, social, ads, reviews, CRM, lead follow-up, AI answering and business phones, built and run as one engine by one team, with one person accountable for the whole result.
The Full Stack is Legacy Sales Engineering’s flagship engagement: your website, SEO, social media, ads, reputation, CRM, lead engagement, AI answering and business phones all built and run by one team, with a single point of accountability. It exists because separate vendors never reference each other. Legacy Sales Engineering is based in Hawthorne and Ocala, Florida, and works with home service contractors across the United States.

Most contractors we talk to have already spent real money on marketing. There’s a website somebody built two years ago. There’s a guy who runs the ads. A family member posts on Facebook when she remembers. The office manager answers the phone when she isn’t already on the phone. Every one of those pieces is fine on its own. None of them know the others exist.
So the ad sends a homeowner to a page that never mentions the service in the ad. The lead lands in an inbox nobody watches until Monday. The review request goes out three weeks after the crew left. The follow-up text says something the estimator never said. Nothing is technically broken. The handoffs are just empty.
That’s the actual leak. Not traffic. Not closing. It’s the half second between one piece and the next, where nobody owns the ball. You can hire a better vendor for every single slot and still lose the same jobs, because the space between them belongs to no one.
The invoices are the smallest part of it. The expensive part is what nobody is doing, because each vendor’s job ends exactly where the next one’s begins.
The ads report says leads are up. The web guy says traffic is up. The social account shows engagement. Meanwhile your phone rang less than last month and nobody can tell you why, because no one is looking at the whole path from search to signed job. Every report is true inside its own box, and the boxes never get stacked. You end up making decisions on fragments.
The Full Stack removes that job from your plate. One team holds every piece, so the handoffs happen inside a room you never have to walk into.
Somebody has to forward the new logo to the ads guy, tell SEO about the service you dropped, and explain to the answering service how estimates get scheduled now. That somebody is you, at nine at night, after a full day in the field. You didn’t buy five services. You bought a second job coordinating them, and you’re the only one who understands the whole business well enough to do it.
Everything Legacy Sales Engineering does, running together instead of separately. Each of these is also available on its own. Inside The Full Stack they’re wired to each other.
The site every other channel points at, built to be found and built to convert the visitor into a booked call.
The pages and structure that earn you traffic you aren't paying for every click on, managed with Rank Math and Search Atlas.
Consistent posting that matches what your ads say and what your crews actually do.
Paid traffic pointed at pages that match the promise in the ad, with follow-up already waiting behind it.
Review requests that go out while the homeowner still remembers your tech's name.
WeekendCRM, our white-labelled build of GoHighLevel, holding every lead, pipeline and automation in one place.
Speed to lead, long-term nurture, and the old database nobody in your office has time to call.
Something that answers at 7pm on a Saturday instead of sending the caller to your competitor.
The number, the routing and the recordings, connected to the same CRM as everything else.
Because more leads into an untrained sales process just means more people telling you no faster.
You can read about any of these on the services pages. The difference here isn’t the list. It’s that one team owns all of it, and every piece is built knowing what the piece next to it is doing.
Everything Legacy Sales Engineering does, running together instead of separately. Each of these is also available on its own. Inside The Full Stack they’re wired to each other.
The site every other channel points at, built to be found and built to convert the visitor into a booked call.
Consistent posting that matches what your ads say and what your crews actually do.
Review requests that go out while the homeowner still remembers your tech's name.
Speed to lead, long-term nurture, and the old database nobody in your office has time to call.
The number, the routing and the recordings, connected to the same CRM as everything else.
The pages and structure that earn you traffic you aren't paying for every click on, managed with Rank Math and Search Atlas.
Paid traffic pointed at pages that match the promise in the ad, with follow-up already waiting behind it.
WeekendCRM, our white-labelled build of GoHighLevel, holding every lead, pipeline and automation in one place.
Something that answers at 7pm on a Saturday instead of sending the caller to your competitor.
Because more leads into an untrained sales process just means more people telling you no faster.
You can read about any of these on the services pages. The difference here isn’t the list. It’s that one team owns all of it, and every piece is built knowing what the piece next to it is doing.
Three steps. No long discovery process, no proposal theater, no committee.
We sit down and walk your front end the way a homeowner does: search, click, call, follow-up, close. We show you where the handoffs are empty. If we can't find real gaps, we'll tell you that too, and you'll have lost nothing but the call.
Site, search, ads, social, reviews, CRM, phones and follow-up get built as one connected system, in the order that fixes your worst leak first. You approve the direction. You don't manage the work, and you don't get handed off to a rotating account rep.
One team keeps it moving, one number to call, one report that tracks the whole path instead of one channel. You go back to doing the work you're good at, and you stop being the integration layer between five companies who've never spoken.
It changes what happens when something goes wrong, which is the only time accountability means anything. With separate vendors, a bad month turns into a round of finger pointing you have to referee. The ads company blames the website. The website guy blames the ads. The SEO report covers a different date range than either of them. Nobody is lying, and nothing gets fixed.
With The Full Stack there’s one team and one answer. If the phone isn’t ringing, that’s ours to explain and ours to correct, and we can correct it without waiting on a stranger’s ticket queue. If leads are coming in but not closing, we look at what’s happening on the appointment, not just what’s happening on the ad. The sales process and the marketing that feeds it belong to the same people.
That also means changes actually land. You drop a service line, add a county, buy a second truck, and the whole system updates together instead of in whatever order five vendors get around to it.
It isn’t for everyone, and we’d rather say so on a web page than on an invoice.
You’re a home service contractor in HVAC, chimney, flooring, gutters, power washing, commercial cleaning or an adjacent trade. You have crews to keep busy and you feel the slow weeks. You’ve already tried pieces of this and gotten mixed results. You want to hand the whole front end to one team and get back to running the operation, and you’re willing to let us change things that aren’t working.
You want a vendor who does exactly what they’re told and nothing more. You want one piece fixed and nothing else touched, which is fair, and a single service is the honest answer for that. Or you’re brand new with no crew and no capacity, in which case more leads would hurt you. Start with sales training and grow into the rest.
Nothing dramatic, which is exactly why it goes on for years. You keep paying five invoices. You keep getting reports that don’t reconcile. The busy season carries you and the slow season scares you, and every January you have the same conversation with yourself about finally getting the marketing figured out. Meanwhile the contractor across town who answers on the second ring is taking the calls you never knew you missed.
Here’s the other version. Six months in, a homeowner searches at 8pm, lands on a page written for the exact service she needs, calls, gets a real answer, and has an appointment before she opens a second tab. Your estimator shows up knowing what she asked for, because it’s in the CRM. She gets a review request that night. Next spring, her neighbor searches and finds that review.
That’s not a trick. It’s just what happens when the handoffs are closed and one team owns all of them.

Because our mission is Stop Selling, Start Solving, and you can’t solve anything you only see one slice of. Shawn Derrick built this company around a proprietary seven-step sales framework, Solution Based Questions, NEPQ and the Zig Ziglar principle that you get what you want by helping enough people get what they want. That framework only works if the whole path is visible, from the search that starts it to the conversation at the kitchen table.
So we built the company to hold all of it. WordPress and Rank Math for the site, Search Atlas for search, WeekendCRM (our white-labelled GoHighLevel build) for every lead and automation, and our own team for the training that makes the leads worth having. Legally we’re Derrick Ventures LLC doing business as Legacy Sales Engineering, based in Hawthorne and Ocala in North Central Florida, working with contractors across the country.
The Full Stack is Legacy Sales Engineering's full engagement: website, SEO, social media, ads, reputation, CRM, lead engagement, AI answering, business phones and sales training, built and managed by one team. Instead of hiring a separate vendor for each piece, you get one engine and one point of accountability for the whole path from search to signed job.
Most agencies handle marketing and stop at the lead. The Full Stack keeps going: the CRM that catches the lead, the follow-up that works it, the phones and AI receptionist that answer it, and the sales training that closes it. That means we can't blame the next vendor down the line, because there isn't one.
Yes. Every piece of The Full Stack is available on its own, and for some contractors that's the right first move. Start where the biggest leak is, then add pieces as they earn it. The free evaluation will tell you honestly which single service would help you most right now.
HVAC, chimney, flooring, gutters, power washing, commercial cleaning and adjacent home service trades. We're based in Hawthorne and Ocala in North Central Florida and work with contractors across the United States. If your trade is close to that list, ask on the evaluation call.
No. Legacy Sales Engineering is based in North Central Florida and serves clients across the United States. The work happens by phone, video and shared systems, and our office hours are Monday through Saturday, 9am to 8pm.
We walk your front end the way a customer experiences it and point out where the handoffs are empty. You'll leave the call knowing what's leaking and what it would take to fix, whether you hire us or not. Call (352) 612-3327 or use the contact page to book it.
You’re good at the work. You shouldn’t have to be good at coordinating five companies who’ve never spoken to each other. Book a free evaluation, we’ll walk your front end with you, and you’ll know exactly where the gaps are before you decide anything.
That is the number. We tell you on the first call, there is no proposal cycle, and it does not change based on how many services you switch on. Every part of the front end is included: website, SEO, social, paid ads, reputation, CRM, lead engagement, AI answering and business phones, run by one team with one point of accountability.
Months
Twelve months, which then renews for a further twelve. We ask for the year because the work does not pay off in ninety days. SEO compounds, a rebuilt sales process needs a full season to bed in, and ad accounts need history before they get efficient. A three month trial of this would waste your money and our time.
Per month
We onboard two new clients a month. That is not a marketing tactic, it is the honest capacity of a team that actually shows up in your office and works your real jobs. If both slots are taken when you call, we will tell you the month we can start rather than take your money and queue you quietly.
Do the arithmetic against your own average job value rather than against another agency’s invoice. If your average job is worth a few thousand dollars, the question is how many additional jobs a month make this obviously correct, and for most contractors that number is small enough to be uncomfortable to say out loud. If your average ticket is very low and your volume is very high, a single service may serve you better than the whole stack, and we will say so.
Not ready for all of it? Start with SEO, ad management or sales training on its own, then add pieces as they earn their place.
That is the number. We tell you on the first call, there is no proposal cycle, and it does not change based on how many services you switch on. Every part of the front end is included: website, SEO, social, paid ads, reputation, CRM, lead engagement, AI answering and business phones, run by one team with one point of accountability.
Months
Twelve months, which then renews for a further twelve. We ask for the year because the work does not pay off in ninety days. SEO compounds, a rebuilt sales process needs a full season to bed in, and ad accounts need history before they get efficient. A three month trial of this would waste your money and our time.
Per month
We onboard two new clients a month. That is not a marketing tactic, it is the honest capacity of a team that actually shows up in your office and works your real jobs. If both slots are taken when you call, we will tell you the month we can start rather than take your money and queue you quietly.
Do the arithmetic against your own average job value rather than against another agency’s invoice. If your average job is worth a few thousand dollars, the question is how many additional jobs a month make this obviously correct, and for most contractors that number is small enough to be uncomfortable to say out loud. If your average ticket is very low and your volume is very high, a single service may serve you better than the whole stack, and we will say so.
Not ready for all of it? Start with SEO, ad management or sales training on its own, then add pieces as they earn their place.